@misc{schultz_seperation_of_1994, 
author={Schultz, J.,Peinemann, K.-V.},
title={Seperation of higher hydrocarbons from methane},
year={1994},
howpublished = {conference paper,conference lecture: Tuebingen (D); 29. August-2. September 1994},
note = {Online available at: \url{} (DOI). Schultz, J.; Peinemann, K.: Seperation of higher hydrocarbons from methane. In: 7th International Symposium on Synthetic Membranes in Science and Industry. Tuebingen (D). 1994. 274-277.}}