1. Magnetic Ceramics: I, General Methods of Magnetic Ferrite Preparation
2. 2J. H. Epstein , Master of Science thesis , Department of Physics, Massachusetts Institute of Technology, 1954 .
3. The system MgO-FeO-Fe 2 O 3 in air at one atmosphere
4. Magnetic Ceramics: II, Properties of Magnetite and Manganese Ferrite Fired in Various Atmospheres
5. 5F. H. Norton , Elements of Ceramics , p.119 . Addison-Wesley Press, Inc., Cambridge, Massachusetts, 1952 . 246 pp.; Ceram. Abstr., 1952, April, p. 78a.