@misc{bittorf_pnr_a_1997, 
author={Bittorf, C.,Stamm, M.,Kampmann, R.},
title={PNR: a novel neutron reflectometer with spin analysis of the reflected neutrons},
year={1997},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Bittorf, C.; Stamm, M.; Kampmann, R.: PNR: a novel neutron reflectometer with spin analysis of the reflected neutrons. Physica  B. 1997. vol. 234-236, 1168-1170.}}