Hughbanks, Timothy (1995). "Exploring the metal-rich chemistry of the early transition elements". Journal of Alloys and Compounds. 229: 40–53. doi:10.1016/0925-8388(95)01688-0.
Franzen, Hugo F. (1978). "Structure and Bonding of Metal-Rich Compounds: Pnictides, chalcogenides and halides". Progress in Solid State Chemistry. 12: 1–39. doi:10.1016/0079-6786(78)90002-X.
