@misc{shukla_a_fixedsite_1992, 
author={Shukla, S. K.,Peinemann, K.-V.},
title={A fixed-site carrier composite membrane for NH3/N2-separation},
year={1992},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Shukla, S.; Peinemann, K.: A fixed-site carrier composite membrane for NH3/N2-separation. Gas Separation and Purification. 1992. vol. 6, 79-81.}}