M. ABBAS, Y.; B. MANSOUR, A.; E. ALI, S.; H. IBRAHIM, A. Investigation of Structural and Magnetic Properties of Multiferroic La1-Xyxfeo3perovskites, Prepared by Citrate Auto-Combustion Technique. JOURNAL OF ADVANCES IN PHYSICS, v. 15, p. 6056-6077, 6 nov. 2018.