Rowley, Adrian T.; Parkin, Ivan P. Convenient synthesis of lanthanide and mixed lanthanide phosphides by solid-state routes involving sodium phosphide. Journal of Materials Chemistry (Royal Society of Chemistry (RSC)). 1993, 3 (7): 689. ISSN 0959-9428. doi:10.1039/jm9930300689.
Rowley, Adrian T.; Parkin, Ivan P. Convenient synthesis of lanthanide and mixed lanthanide phosphides by solid-state routes involving sodium phosphide. Journal of Materials Chemistry (Royal Society of Chemistry (RSC)). 1993, 3 (7): 689. ISSN 0959-9428. doi:10.1039/jm9930300689.