Numerical Simulation of Instationary Magnetoplasmadynamic Thrusters D. D'Andrea, M. Quandt, D. Petkow, T. Stindl, M. Fertig, M. Auweter-Kurtz, C.-D. Munz, S. Roller, P. Adamidis and R. Schneider ESAIM: Proc., 16 (2007) 224-241 Published online: 02 March 2007 DOI: 10.1051/proc:2007004