U. Güntner

Determination of the origin of urinary norandrosterone traces by gas chromatography combustion isotope ratio mass spectrometry.

M. Thevis, H. Geyer, U. Mareck, 2006, The Analyst.

A north to south transect of Holocene southeast Atlantic continental margin sediments: Relationship between aerosol transport and compound‐specific δ13C land plant biomarker and pollen records

G. Eglinton, L. Dupont, J. Rullkötter, 2003 .

Precision of the current methods to measure the alkenone proxy U37K′ and absolute alkenone abundance in sediments: Results of an interlaboratory comparison study

C. Pelejero, R. Schneider, E. Bard, 2001 .

δ C

W. Schänzer, U. Flenker, U. Güntner, 2008, Steroids.

Influence of Changes in Diet on the Dynamics of 13 C / 12 C in Selected Urinary Steroids : Diet free from Cholesterol

F. Hülsemann, U. Flenker, W. Schänzer, 2006 .

Which factors control 13 C / 12 C-ratios of urinary steroids ?

U. Flenker, W. Schänzer, S. Lüdke, 2009 .