Alexander Stiefel

Design and Realization of a Test Stand for Optical Fluid Dynamic Research of Gels

Helmut Ciezki, Christoph Kirchberger, Guido Kurth, 2017 .

Overview on the German Gel Propulsion Technology Activities: Status 2017 and Outlook

Christoph Kirchberger, Alexander Stiefel, P. Kröger, 2017 .

An Overview on Current Gelled Propellants Activities at DLR Lampoldshausen

Helmut Ciezki, Christoph Kirchberger, Alexander Stiefel, 2018 .

A Method for Screening and Identification of Green Hypergolic Bipropellants

Dominic Freudenmann, Helmut Ciezki, Christoph Kirchberger, 2018 .