1. Fink, W.L.; Freche, H.R., Equilibrium Relations in Aluminum-Chromium Alloys of High Purity, Trans. Am. Inst. Min., Metall. Pet. Eng., 104, 325-334 (1933)
2. Bradley, A.J.; Lu, S.S., An X-Ray Study of the Chromium-Aluminium Equilibrium Diagram, J. Inst. Met.,60, 319-337 (1937)
3. Raynor, G.V.; Little, K., The Constitution of the Al-Rich Al-Cr Alloys, J. Inst. Met., 71(9), 481-489 (1945)
4. Cooper, M.J., The Structure of the Intermetallic Phase Theta (Cr-Al), Acta Crystallogr., 13(3), 257-263 (1960), DOI: 10.1107/S0365110X60000571
5. Kubaschewski, O.; Heymer, G., "Heats of Formation of Transition-Metal Aluminides", Trans. Faraday Soc., 56, 473-478 (1960)