@misc{boeddeker_membranes_in_2001, 
author={Boeddeker, K.W.,Peinemann, K.-V.,Pereira Nunes, S.},
title={Membranes in Fuel Cells},
year={2001},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Boeddeker, K.; Peinemann, K.; Pereira Nunes, S.: Membranes in Fuel Cells. Journal of Membrane Science. 2001. vol. 1, 1-1.}}