1. Kazue Hatsuta: Equilibrium Diagram for the Chromium-Carbon System. Tech. Repts., Tohoku Imp. Univ., X, No. 4 (1932).
2. E. Friemann, F. Sauerwald: Ztsch. anorg. Chem. (1932), 203. 64.
3. W. Tofaute, C. Kuttner, A. Buttinghaus: The Iron-Chromium-Cr7C3-Cementite System. Brutcher Translation 1009 (1936).
4. H. Moissan: Results of Experiments with Chromium. C. R. Acad. Sci., Paris (1894) 119, 185; (1897) 125, 841.
5. K. Kelley, F. Boericke, G. Moore, E. Huffman, W. Bangert: Thermodynamic Properties of Carbides of Chromium. Bur. of Mines T.P. 662 (1944).