@misc{greim_neutron_sources_1992, 
author={Greim, L., Leeflang, H. P., Matfield, R.},
title={Neutron sources},
year={1992},
howpublished = {book part},
note = {Greim, L.; Leeflang, H.; Matfield, R.: Neutron sources. In: Domanus, J. (Ed.): Practical Neutron Radiography. Dordrecht: Kluwer. 1992. 12-25.}}