1. Bradley, A.J., Lu, S.S., 'An X-Ray Study of the Chromium-Aluminium Equilibrium Diagram', J. Inst. Met., 60, 319-337 (1937)
2. Knappwost, A., Nowotny, H., 'Magnetic Investigations in the Ternary Al-Cr-Cu System', Z. Metallkd., 33, 153-157 (1941)
3. Cooper, M.J., 'The Structure of the Intermetallic Phase θ (Cr-Al)', Acta Crystallogr., 13, 257-263 (1960)
4. Köster, W., Watchel, E., Grube, K., 'Structure and Magnetic Properties of Aluminium-Chromium Alloys' (in German), Z. Metallkd., 54, 393-401 (1963)
5. Raman, A., Schubert, K., 'The Occurrence of Zr2Cu and Cr2Al Type Intermetallic Compounds' (in German), Z. Metallkd., 55, 798-804 (1964)