@misc{maayouf_xray_and_1993, 
author={Maayouf, R. M. A.,Brokmeier, H.-G.,Fayek, M. K.},
title={X-ray and neutron diffraction studies of NiFeGaO4 and ZnFeGaO4},
year={1993},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Maayouf, R.; Brokmeier, H.; Fayek, M.: X-ray and neutron diffraction studies of NiFeGaO4 and ZnFeGaO4. Materials Science Forum. 1993. vol. 133-136, 811-816.}}