1. Phase Equilibria at Liquidus Temperatures in the System Cobalt Oxide-Iron Oxide-Silica in Air
2. 3D. G. Wickham , "Synthesis of Ferrites and Preparation of Cobalt-Ferrite Single Crystals ," Tech. Rept. 89, ONR Contracts N5ori-07801 and N5ori-07858, 1954 .
3. 5J. R. C. Guimaraes , Materials Science Department, Northwestern University; private communication.