@misc{bein_multiphase_pumps_1990, 
author={Bein, H.,Wietstock, P.},
title={Multiphase pumps according to twin screw: design for high gas fractions and differential pressure},
year={1990},
howpublished = {conference paper,conference lecture: Hamburg (D); 25.-27. September 1990},
note = {Online available at: \url{} (DOI). Bein, H.; Wietstock, P.: Multiphase pumps according to twin screw: design for high gas fractions and differential pressure. In: Wilde, C. (Ed.): SMM '90 Conference: Progress, Environment, Economy; A Challenge to Marine Technology. Hamburg (D). 1990. 115.}}