Yamamoto, Hiroshi; Nishio, Hiroaki; Kanaya, Kenji . (2006). Magnetic Properties of Co-Ni-Cr Spinel Ferrite Fine Particles with Giant Coercivity Prepared by the Chemical Coprecipitation Method. Journal of the Japan Society of Powder and Powder Metallurgy, 53(7), 617–624.
doi:10.2497/jjspm.53.617