@misc{steglich_punch_test_2005, 
author={Steglich, D., Heerens, J., Brocks, W.},
title={Punch Test for the Simulation of Ships Hull Damage},
year={2005},
howpublished = {conference lecture: Oslo (N);},
note = {Steglich, D.; Heerens, J.; Brocks, W.: Punch Test for the Simulation of Ships Hull Damage. International Conference on Computational Methods in Marine Engineering. Oslo (N), 2005.}}