1. 29Sie: A. Sieverts, “The Solubility of Gases in Metals”,Z. Metallkd., 21, 37 (1929).
2. 40Bri: R. M. Brick and J. A. Creevy, “Solubility of Nitrogen in Liquid Fe−Cr and Fe−V Alloys”,Met. Technol., Tech. Publ. No. 1165, 1–10 (1940). (Experimental)
3. 48Jac: K.H., Jack, “The Iron-N-Nitrogen System: the Structures of Fe4N and Fe2N”,Proc. Roy. Soc., A195, 34–40 (1948). (Crys Structure; Experimental)
4. 49Hah: H. Hahn, “Metal Amides and Metal Nitrides XVIII. The System Vanadium-Nitrogen”,Z. Anorg. Chem., 258, 58–68 (1949) in German. (Crys Structure; Experimental)
5. 53Pea: J. Pearson and U.J.C. Ende, “The Thermodynamics of Metal Nitrides and of Nitrogen in Iron and Steel”,J. Iron Steel Inst., 175, 52–58 (1953). (Thermo; Review)