C. Helm

发表

Effects of reactive oxygen species on single polycation layers.

Florian Berg, S. Block, S. Drache, 2013, The journal of physical chemistry. B.

Deposition of titanium/titanium oxide clusters produced by magnetron sputtering

B. Smirnov, R. Hippler, C. Helm, 2006 .

Effect of 3D-scaffold formation on differentiation and survival in human neural progenitor cells

M. Frech, D. Weiss, A. Rolfs, 2010, Biomedical engineering online.

Vaccination with anti-idiotype antibody ganglidiomab mediates a GD2-specific anti-neuroblastoma immune response

D. Reker, C. Helm, D. Seidel, 2013, Cancer Immunology, Immunotherapy.

Influence of reactive oxygen species during deposition of iron oxide films by high power impulse magnetron sputtering

R. Hippler, C. Helm, Z. Hubička, 2018 .

Angular dependence of plasma parameters and film properties during high power impulse magnetron sputtering for deposition of Ti and TiO2 layers

R. Hippler, C. Helm, Z. Hubička, 2017 .

Pressure dependence of Ar2+, ArTi+, and Ti2+ dimer formation in a magnetron sputtering discharge

R. Hippler, C. Helm, Z. Hubička, 2017 .

Complex formation with nucleic acids and aptamers alters the antigenic properties of platelet factor 4.

K. Preissner, A. Greinacher, S. Block, 2013, Blood.

Forces between phospholipid bilayers and relationship to membrane fusion.

J. Israelachvili, C. Helm, 1993, Methods in enzymology.

Role of hydrophobic forces in bilayer adhesion and fusion.

J. Israelachvili, P. McGuiggan, C. Helm, 1992, Biochemistry.

Ionized vapor deposition of antimicrobial Ti–Cu films with controlled copper release

R. Bader, S. Drache, R. Hippler, 2014 .

Temperature-induced transition from odd-even to even-odd effect in polyelectrolyte multilayers due to interpolyelectrolyte interactions.

S. Block, C. Helm, P. Nestler, 2012, The journal of physical chemistry. B.

Characterisation of the conformational changes in platelet factor 4 induced by polyanions: towards in vitro prediction of antigenicity

T. Renné, K. Gottschalk, A. Greinacher, 2014, Thrombosis and Haemostasis.

Morphology, mechanical stability, and protective properties of ultrathin gallium oxide coatings.

S. Block, C. Helm, N. Severin, 2015, Langmuir : the ACS journal of surfaces and colloids.

Ligand-receptor interactions directly measured with the surface forces apparatus

W. Knoll, J. Israelachvili, C. Helm, 1991 .

Enhancement of Intracellular Calcium Ion Mobilization by Moderately but Not Highly Positive Material Surface Charges

C. Helm, M. Schnabelrauch, J. Nebe, 2020, Frontiers in Bioengineering and Biotechnology.

THROMBOSIS AND HEMOSTASIS Complex formation with nucleic acids and aptamers alters the antigenic properties of platelet factor 4

K. Preissner, A. Greinacher, S. Block, 2013 .

Formation of palladium hydrides in low temperature Ar/H2-plasma

C. Helm, M. Fröhlich, H. Deutsch, 2015 .

Charged polymer brushes - counterion incorporation and scaling relations.

C. Helm, S. Förster, H. Ahrens, 1998 .

Strain Effects by Surface Oxidation of Cu3N Thin Films Deposited by DC Magnetron Sputtering

A. Majumdar, S. Drache, R. Hippler, 2017 .

Polyphosphates form antigenic complexes with platelet factor 4 (PF4) and enhance PF4-binding to bacteria

T. Renné, S. Hammerschmidt, A. Greinacher, 2015, Thrombosis and Haemostasis.

Conformation of poly(styrene sulfonate) layers physisorbed from high salt solution studied by force measurements on two different length scales.

S. Block, C. Helm, Stephan Block, 2008, The journal of physical chemistry. B.

Stiffness of left ventricular cardiac fibroblasts is associated with ventricular dilation in patients with recent-onset nonischemic and nonvalvular cardiomyopathy.

W. Hoffmann, S. Felix, M. Dörr, 2014, Circulation journal : official journal of the Japanese Circulation Society.

Accelerated cell-surface interlocking on plasma polymer-modified porous ceramics.

C. Helm, H. Rebl, B. Finke, 2016, Materials science & engineering. C, Materials for biological applications.

Effect of 3 D-scaffold formation on differentiation and survival in human neural progenitor cells

M. Frech, D. Weiss, A. Rolfs, 2010 .

Close Approximation of Two Platelet Factor 4 Tetramers by Charge Neutralization Forms the Antigens Recognized by HIT Antibodies

W. Weitschies, A. Greinacher, C. Helm, 2006, Arteriosclerosis, thrombosis, and vascular biology.

X-ray and Neutron Reflectometry of Thin Films at Liquid Interfaces.

C. Helm, M. Delcea, 2019, Langmuir : the ACS journal of surfaces and colloids.

Surface Forces of Asymmetrically Grown Polyelectrolyte Multilayers: Searching for the Charges.

C. Helm, Sven Neuber, Heba S Mohamad, 2019, Langmuir : the ACS journal of surfaces and colloids.

Polyetylenimine (PEI) adsorption to a DMPG lipid-monolayer in the presence of iron salts and EDTA

C. Helm, F. Lawrenz, H. Ahrens, 2016 .

Influence of Binary Polymer Mixtures on the Nonlinear Growth Regimes of Polyelectrolyte Multilayer Films

C. Helm, O. Soltwedel, P. Nestler, 2016 .

Branched Poly(ethylenimine) as Barrier Layer for Polyelectrolyte Diffusion in Multilayer Films

C. Helm, O. Soltwedel, P. Nestler, 2015 .

Immobilization of functionalized lipids in a random poly(methacrylate) copolymer monolayer

C. Helm, K. Lowack, 1995 .

Abrogated Cell Contact Guidance on Amino-Functionalized Microgrooves.

C. Helm, M. Schnabelrauch, H. Rebl, 2017, ACS applied materials & interfaces.

Phospholipid Monolayer Density Distribution Perpendicular to the Water Surface. A Synchrotron X-Ray Reflectivity Study

K. Kjaer, J. Als-Nielsen, C. Helm, 1987 .

Response of Osteoblasts to Electric Field Line Patterns Emerging from Molecule Stripe Landscapes

C. Helm, J. Nebe, S. Speller, 2022, Applied Sciences.

Identification of a critical lipid ratio in raft-like phases exposed to nitric oxide: An AFM study

C. Helm, M. Delcea, S. Karanth, 2021, Biophysical journal.

Determination of refractive index and layer thickness of nm-thin films via ellipsometry.

C. Helm, P. Nestler, 2017, Optics express.

Binding of anti-platelet factor 4/heparin antibodies depends on the thermodynamics of conformational changes in platelet factor 4.

W. Weitschies, A. Greinacher, S. Block, 2014, Blood.

THROMBOSIS AND HEMOSTASIS Binding of anti – platelet factor 4 / heparin antibodies depends on the thermodynamics of conformational changes in platelet factor 4

W. Weitschies, A. Greinacher, S. Block, 2014 .

Interaction between platelet factor 4 and heparins : thermodynamics determines conformational changes required for binding of antiplatelet factor 4 / heparin antibodies

W. Weitschies, A. Greinacher, S. Block, 2014 .

Human neutrophil antigen‐3a antibodies induce neutrophil stiffening and conformational activation of CD11b without shedding of L‐selectin

A. Greinacher, C. Helm, M. Delcea, 2015, Transfusion.

Seaweed and Dendritic Growth in Unsaturated Fatty Acid Monolayers

C. Helm, H. Wulff, H. Ahrens, 2022, Membranes.

The colloidal nature of phospholipid monolayers

C. Helm, H. Möhwald, A. Miller, 1987 .

Electrostatic interactions in phospholipid membranes I: Influence of monovalent ions

M. Lösche, L. Laxhuber, C. Helm, 1986 .

Deposition of tungsten oxide films by reactive magnetron sputtering on different substrates

R. Hippler, C. Helm, J. Olejníček, 2022, Journal of Vacuum Science & Technology A.

Adhesion and adhesion hysteresis of mica surfaces covered with bola-amphipiles in dry and humid air

C. Helm, P. Mächtle, 1998 .

Molecular mechanisms and forces involved in the adhesion and fusion of amphiphilic bilayers.

J. Israelachvili, P. McGuiggan, C. Helm, 1989, Science.

Molecular Mechanisms Controlling the Self-Assembly Process of Polyelectrolyte Multilayers

C. Helm, K. Lowack, 1998 .

Pulsed gas aggregation for improved nanocluster growth and flux

Florian Berg, S. Drache, R. Hippler, 2014 .

Interactions of Monovalent and Divalent Cations with Cardiolipin Monolayers.

C. Helm, H. Ahrens, Renko Kensbock, 2019, Langmuir : the ACS journal of surfaces and colloids.

The solid-state architecture of a metallosupramolecular polyelectrolyte

M. Higuchi, U. Kolb, C. Helm, 2006, Proceedings of the National Academy of Sciences.

Formation of nickel hydrides in reactive plasmas

C. Helm, H. Wulff, O. Ivanova, 2009 .

Aggregation and rearrangement within a silver nanoparticle layer during polyelectrolyte multilayer formation.

C. Helm, M. Höhne, O. Soltwedel, 2010, Langmuir : the ACS journal of surfaces and colloids.

Protective Role of Sphingomyelin in Eye Lens Cell Membrane Model against Oxidative Stress

C. Helm, H. Kahlert, K. Wende, 2021, Biomolecules.

Size-controlled formation of Cu nanoclusters in pulsed magnetron sputtering system

L. Jastrabík, S. Block, S. Drache, 2011 .

The role of the hydrophobic force in bilayer adhesion and fusion

J. Israelachvili, C. Helm, 1991 .

Characterizing the phases of Langmuir monolayers of cylindrical brushes with x-ray reflectivity and diffraction

C. Helm, G. Papastavrou, H. Ahrens, 2005 .

Effects of humidity on the structure and adhesion of amphiphilic monolayers on mica

J. Israelachvili, P. McGuiggan, M. Gee, 1989 .

Ellipsometry and X-ray reflectivity studies on monolayers of phosphatidylethanolamine and phosphatidylcholine in contact with n-dodecane, n-hexadecane, and bicyclohexyl

M. Thoma, C. Helm, H. Möhwald, 1996 .

Membrane fluidity of tetramyristoyl cardiolipin (TMCL) liposomes studied by chronoamperometric monitoring of their adhesion and spreading at the surface of a mercury electrode

C. Helm, D. Vollmer, U. Lendeckel, 2012, Journal of Solid State Electrochemistry.

Trends in Colloid and Interface Science VI

M. Lösche, C. Helm, H. Möhwald, 1992 .

Dendrimer-Encapsulated Pt Nanoparticles : Synthesis , Characterization , and Applications to Catalysis

C. Helm, W. Goedel, R. Heger, 1999 .

Pressure dependence of singly and doubly charged ion formation in a HiPIMS discharge

R. Hippler, C. Helm, Z. Hubička, 2019, Journal of Applied Physics.

Measurements of the elastic properties of surfactant and lipid monolayers

J. Israelachvili, C. Helm, Y. L. Chen, 1991 .

Lipid and polyampholyte monolayers to study polyelectrolyte interactions and structure at interfaces

C. Helm, M. Stamm, H. Möhwald, 2004 .

Phases of phosphatidyl ethanolamine monolayers studied by synchrotron x-ray scattering.

K. Kjaer, J. Als-Nielsen, C. Helm, 1991, Biophysical journal.

Synchrotron X-Ray Studies on Lipid Monolayers

C. Helm, 1989 .

Nonaqueous atomic layer deposition of aluminum phosphate.

D. Zahn, C. Helm, B. Wielage, 2013, ACS applied materials & interfaces.

Nonlinear Osmotic Brush Regime: Experiments, Simulations and Scaling Theory

C. Helm, R. Netz, A. Naji, 2004, cond-mat/0504440.

Copper tungsten oxide (CuxWOy) thin films for optical and photoelectrochemical applications deposited by reactive high power impulse magnetron co-sputtering

R. Hippler, C. Helm, J. Olejníček, 2022, Journal of Applied Physics.

Stable Metal/Metal Hydroxide Multilayers with Controlled Nanoscale Thickness Prepared from Liquid Metal Droplets with Oxide Skin

C. Helm, H. Wulff, H. Ahrens, 2022, The Journal of Physical Chemistry C.

Self-Patterning Polyelectrolyte Multilayer Films: Influence of Deposition Steps and Drying in a Vacuum.

C. Helm, M. Vancová, V. Stranak, 2021, Langmuir : the ACS journal of surfaces and colloids.

Automatic Actin Filament Quantification and Cell Shape Modeling of Osteoblasts on Charged Ti Surfaces

U. van Rienen, C. Helm, J. Nebe, 2021, Applied Sciences.

Structural deformation, melting point and lattice parameter studies of size selected silver clusters

R. Hippler, C. Helm, I. Shyjumon, 2006 .

Synchrotron X-ray diffraction and reflection studies of arachidic acid monolayers at the air−water interface

K. Kjaer, J. Als-Nielsen, C. Helm, 1989 .

Role of calcium in the adhesion and fusion of bilayers.

D. Leckband, J. Israelachvili, C. Helm, 1993, Biochemistry.

Lipid monolayers and adsorbed polyelectrolytes with different degrees of polymerization.

C. Helm, P. Nestler, F. Lawrenz, 2014, Langmuir : the ACS journal of surfaces and colloids.

Measurement of ligand-receptor interactions.

W. Knoll, J. Israelachvili, C. Helm, 1991, Proceedings of the National Academy of Sciences of the United States of America.

Polyelectrolyte adsorption onto insoluble monolayers at the air/water interface.

C. Helm, H. Möhwald, J. Schmitt, 2001 .

Formation of large PEE domains in PEE212-PEO112 diblock copolymer monolayers: shift of the PEO-desorption transition.

C. Helm, S. Förster, H. Ahrens, 2004, Langmuir : the ACS journal of surfaces and colloids.

Atomic Layer Deposition of Titanium Phosphate from Titanium Tetrachloride and Triethyl Phosphate onto Carbon Fibers

C. Helm, V. Dzhagan, D. Zahn, 2018 .

Physical properties of homogeneous TiO2 films prepared by high power impulse magnetron sputtering as a function of crystallographic phase and nanostructure

S. Block, R. Hippler, C. Helm, 2009 .

Influence of Polycation (PDADMAC) Weight on Vertical Diffusion within Polyelectrolyte Multilayers during Film Formation and Postpreparation Treatment

C. Helm, O. Soltwedel, P. Nestler, 2012 .

Polyelectrolyte Multilayer Films from Mixtures of Polyanions: Different Compositions in Films and Deposition Solutions

C. Helm, P. Nestler, Sven Neuber, 2020 .

Microstructure and optical properties of mixed monolayers containing a J-band forming cyanine dye and various cosurfactants☆

W. Knoll, J. Als-Nielsen, C. Duschl, 1988 .

Vanadyl binding to phospholipid membranes

L. Laxhuber, C. Helm, H. Möhwald, 1985 .

Equilibrium and nonequilibrium features in the morphology and structure of physisorbed polyelectrolyte layers.

S. Block, C. Helm, Stephan Block, 2011, The journal of physical chemistry. B.

Polyelectrolyte Brushes Grafted at the Air/Water Interface

C. Helm, S. Förster, H. Ahrens, 1997 .

Molecular mechanisms associated with adhesion and contact angle hysteresis of monolayer surfaces

J. Israelachvili, C. Helm, Y. L. Chen, 1991 .

Complex Cell Physiology on Topographically and Chemically Designed Material Surfaces

C. Helm, M. Schnabelrauch, H. Rebl, 2016 .

Interaction forces and molecular adhesion between pre-adsorbed poly(ethylene imine) layers.

M. Borkovec, Ramon Pericet-Camara, C. Helm, 2006, Journal of colloid and interface science.

Polyelectrolyte Conformation in and Structure of Polyelectrolyte Multilayers

C. Helm, O. Soltwedel, P. Nestler, 2012 .

Measurement of long-ranged steric forces between polyelectrolyte layers physisorbed from 1 M NaCl.

C. Helm, Stephan Block, 2007, Physical review. E, Statistical, nonlinear, and soft matter physics.

Tailorable Polyanion Diffusion Coefficient in LbL Films: The Role of Polycation Molecular Weight and Polymer Conformation

C. Helm, P. Nestler, Amir Azinfar, 2019, Macromolecules.

Preparation and Optical Properties of Colloidal Gold Monolayers

Johannes Schmitt, C. Helm, J. Schmitt, 1999 .

Stable 2D Conductive Ga/Ga(OxHy) Multilayers with Controlled Nanoscale Thickness Prepared from Gallium Droplets with Oxide Skin

C. Helm, F. Lawrenz, H. Ahrens, 2018, Advanced Materials Interfaces.

X-ray reflectivity study of layering transitions and the internal multilayer structure of films of three-block organosiloxane amphiphilic smectic liquid crystals at the air-water interface

C. Helm, H. Möhwald, M. Ibn-Elhaj, 1997 .

The adhesion and spreading of thrombocyte vesicles on electrode surfaces.

F. Harnisch, H. Kroemer, J. Niessen, 2008, Bioelectrochemistry.

Deposition of cobalt oxide films by reactive pulsed magnetron sputtering

R. Hippler, C. Helm, J. Olejníček, 2020 .

Nanoparticle composition of a ferrofluid and its effects on the magnetic properties.

W Weitschies, W. Weitschies, C. Helm, 2004, Langmuir : the ACS journal of surfaces and colloids.

AFM-based quantification of conformational changes in DNA caused by reactive oxygen species.

Florian Berg, C. Helm, Stephan Block, 2015, The journal of physical chemistry. B.

Lipid Monolayers with Adsorbed Oppositely Charged Polyelectrolytes: Influence of Reduced Charge Densities

C. Helm, A. Laschewsky, S. Garnier, 2014 .

Molecular mechanisms of phosphatidylcholine monolayer solidification due to hydroxyl radicals

C. Helm, G. Brezesinski, F. Scholz, 2011 .

Structure of hydroxylated galactocerebrosides from myelin at the air-water interface.

C. Helm, K. Graf, H. Ahrens, 2002, Biophysical journal.

Influence of Adsorption Conditions on the Structure of Polyelectrolyte Multilayers

Heiko Ahrens, C. Helm, Christiane A. Helm, 2002 .

The influence of secondary interactions during the formation of polyelectrolyte multilayers: layer thickness, bound water and layer interpenetration.

C. Helm, R. Steitz, O. Ivanova, 2007, The journal of physical chemistry. B.

Plasmon Resonance Measurements of the Adsorption and Adsorption Kinetics of a Biopolymer onto Gold Nanocolloids

C. Helm, Christiane A. Helm, Dirk Eck and, 2001 .

Observation of a Superstructure X-ray Peak within Lipopolymer Monolayers on the Water Surface

C. Helm, H. Ahrens, A. Graf, 2001 .

Atomic force microscopy of hydrated phosphatidylethanolamine bilayers.

P K Hansma, P. Hansma, J. Zasadzinski, 1991, Biophysical journal.

Characterization of bonds formed between platelet factor 4 and negatively charged drugs using single molecule force spectroscopy.

A. Greinacher, C. Helm, M. Delcea, 2014, Soft matter.

A novel contact model for AFM indentation experiments on soft spherical cell-like particles.

C. Helm, S. Schmidt, L. Hartmann, 2014, Soft matter.

Destabilization of Polyelectrolyte Multilayers Formed at Different Temperatures and Ion Concentrations

C. Helm, M. Cornelsen, Stephan Block, 2010 .

Formation of Langmuir-Blodgett films via electrostatic control of the lipid/water interface☆

M. Lösche, C. Helm, H. Möhwald, 1985 .

Crystallization in thin liquid films induced by shear.

J. Israelachvili, C. Helm, M. Akbulut, 2005, The journal of physical chemistry. B.

Direct visualization and identification of biofunctionalized nanoparticles using a magnetic atomic force microscope.

W. Weitschies, C. Helm, G. Glöckl, 2011, Nano letters.

Internal Interface of a Compressed PEE−PEO Diblock Copolymer Monolayer

C. Helm, R. Steitz, A. Förster, 2003 .

Influence of Polymer Molecular Weight on the Parabolic and Linear Growth Regime of PDADMAC/PSS Multilayers

C. Helm, P. Nestler, M. Paßvogel, 2013 .

Nonlinear Hairy Layer Theory of Electrophoretic Fingerprinting Applied to Consecutive Layer by Layer Polyelectrolyte Adsorption onto Charged Polystyrene Latex Particles

V. Shilov, D. Walther, C. Helm, 1997 .

Photoactivation of Diiodido-Pt(IV) Complexes Coupled to Upconverting Nanoparticles.

G. Natile, C. Helm, M. M. Natile, 2016, Molecular pharmaceutics.

Phospholipid monolayers between fluid and solid states.

K. Kjaer, J. Als-Nielsen, C. Helm, 1987, Biophysical journal.

Study of mass and cluster flux in a pulsed gas system with enhanced nanoparticle aggregation

Florian Berg, S. Drache, R. Hippler, 2014 .

Oxidation behavior of Cu nanoparticles embedded into semiconductive TiO2 matrix

S. Drache, R. Hippler, C. Helm, 2015 .

Poly(styrene sulfonate) self-organization: Electrostatic and secondary interactions

C. Helm, R. Steitz, S. Förster, 2004 .

SUPERSATURATION AND CRYSTAL NUCLEATION IN CONFINED GEOMETRIES

C. Helm, L. Dähne, T. Grunewald, 1998 .

Enhanced Absorption within a Cavity. A Study of Thin Dye Layers with the Surface Forces Apparatus

C. Helm, C. Mueller, P. Maechtle, 1994 .

A thin absorbing layer at the center of a Fabry-Pérot interferometer

C. Helm, C. Müller, P. Mächtle, 1994 .

Equilibrium and nonequilibrium features determining superlattices in phospholipid monolayers

C. Helm, H. Möhwald, 1988 .

Gelatin adsorption at the air/water interface as investigated by X-ray reflectivity

N. Wagner, C. Helm, K. A. Vaynberg, 1999 .

Influence of Different Solutions on Electrically Conductive Films Composed of Carbon Nanotubes and Polydimethyldiallylammonium

C. Helm, A. Quade, Sven Neuber, 2023, ACS Applied Engineering Materials.

Influence of molecular weight of polycation polydimethyldiallylammonium and carbon nanotube content on electric conductivity of layer-by-layer films

I. Efthymiopoulos, C. Helm, Katja Fricke, 2022, Thin Solid Films.

Formation of gold surfaces with a strongly preferred {100}-orientation

C. Helm, F. Scholz, H. Wulff, 2013, Journal of Solid State Electrochemistry.

Polyphosphates form antigenic complexes with platelet factor 4 (PF4) and enhance PF4-binding to bacteria

T. Renné, S. Hammerschmidt, A. Greinacher, 2015, Thrombosis and Haemostasis.

Nonaqueous atomic layer deposition of aluminum phosphate.

D. Zahn, C. Helm, B. Wielage, 2013, ACS applied materials & interfaces.

Oxidation of unsaturated phospholipids: a monolayer study.

C. Helm, H. Ahrens, Florian Gellert, 2020, Langmuir : the ACS journal of surfaces and colloids.

Complex formation with nucleic acids and aptamers alters the antigenic properties of platelet factor 4.

K. Preissner, A. Greinacher, C. Helm, 2013, Blood.

Ordering in lipid monolayers studied by synchrotron x-ray diffraction and fluorescence microscopy.

Kjaer, K. Kjaer, J. Als-Nielsen, 1987, Physical review letters.

Influence of Surface Flows on the Shape of Fractal Domains.

C. Helm, H. Ahrens, Florian Gellert, 2023, Langmuir : the ACS journal of surfaces and colloids.

Lipid monolayers and adsorbed polyelectrolytes with different degrees of polymerization.

C. Helm, P. Nestler, F. Lawrenz, 2014, Langmuir : the ACS journal of surfaces and colloids.

The Phases of Phosphatidyl Ethanolamine Monolayers

K. Kjaer, J. Als-Nielsen, C. Helm, 1992 .

Approaching the Precipitation Temperature of the Deposition Solution and the Effects on the Internal Order of Polyelectrolyte Multilayers

C. Helm, A. Steitz, H. Ahrens, 2005 .

Dependence of PSS Diffusion in Multilayers of Entangled PDADMA on Temperature and Salt Concentration: More than One Diffusion Constant

C. Helm, P. Nestler, A. Sill, 2021, Macromolecules.

Interdiffusion in Polyelectrolyte Multilayers

C. Helm, Madlen Müller, O. Soltwedel, 2010 .

Polyelectrolyte Monolayers at the Mica/Air Interface: Mechanically Induced Rearrangements and Monolayer Annealing

C. Helm, K. Lowack, 1995 .