@misc{dlhopolsky_study_on_1997, 
author={Dlhopolsky, R., Hollmann, R., Mueller, J., Stuhlmann, R.},
title={Study on Radiation Budget Mission Scenarios},
year={1997},
howpublished = {GKSS report},
note = {Dlhopolsky, R.; Hollmann, R.; Mueller, J.; Stuhlmann, R.: Study on Radiation Budget Mission Scenarios. GKSS 97-E-71. 1997.}}