1. 06Sto: L. Stockem, “Information on Alloying Ability of Ca”,Metallurgie, 3, 147–149 (1906) in German. (Equi Diagram; Experimental)
2. 08Don: L. Donski, “On Alloys of Ca with Zn, Cd, Al, Tl, Pb, Bi, Sb, and Cu”,Z. Anorg. Chem., 57, 185–219 (1908) in German. (Equi Diagram; Experimental)
3. 11Baa: N. Baar, “On Alloys of Mo with Ni, Mn with Tl, and Ca with Mg, Tl, Pb, Cu, and Ag”,Z. Anorg. Chem., 70, 377–383 (1911) in German. (Equi Diagram; Experimental; Indicates presence of a phase diagram)
4. 30Sch: E.E. Schumacher, W.C. Ellis, and J.F. Eckel, “Deoxidation of Cu with Ca and Properties of Some Cu−Ca Alloys”,Trans. Met. Soc. AIME, 89, 151–161 (1930). (Equi Diagram; Experimental)
5. 31Ssy: R.R. Ssyromjatnikov, “On Alloys of Ca”,Metallurg, 6, 466–485 (1931) in Russian. (Equi Diagram; Experimental)