@misc{schafstall_simulators_for_1988, 
author={Schafstall, H.-G.,Donker, B.,Koenig, D.},
title={Simulators for manned and unmanned mission training},
year={1988},
howpublished = {conference lecture: London (GB); 26.-28.01.1988},
note = {Online available at: \url{} (DOI). Schafstall, H.; Donker, B.; Koenig, D.: Simulators for manned and unmanned mission training. International Conference Technology Common to Aero and Marine Engineering. London (GB), 1988.}}