A. Amirabadizadeh, M. Rasouli, and R. Sarhaddi, “Structural and Magnetic Properties of Co0.5Ni0.5-xMnxFe2O4(x=0, 0.15, 0.25, 0.35, 0.5) Ferrite Nanoparticles Prepared via Sol-Gel Auto-Combustion Method”, JAP, vol. 3, no. 3, pp. 267–277, Dec. 2013.