@misc{schafstall_multiphaseflow_in_1990, 
author={Schafstall, H.-G.},
title={Multiphase-flow in the Federal Republic of Germany},
year={1990},
howpublished = {conference paper,conference lecture: Kopenhagen (DK); September 18-19, 1989},
note = {Online available at: \url{} (DOI). Schafstall, H.: Multiphase-flow in the Federal Republic of Germany. In: Multiphase Flow Workshop: Proceedings. Kopenhagen (DK). 1990. 1-20.}}