1. 1948Hoh: E. Hohmann, Silicides and Germanides of the Alkali Metals, Z. Anorg. Allg. Chem., 1948, 257(1–3), p 113–126. in German (Equi Diagram; Crys Structure; Experimental)
2. 1961Bus: E. Busmann, The Crystal Structures of KSi, RbSi, CsSi, KGe, RbGe and CsGe, Z. Anorg. Allg. Chem., 1961, 313(1–2), p 90–106, in German (Equi Diagram; Crys Styructure; Experimental)
3. 1961Sch: R. Schäfer and W. Klemm, Further Notes on the Silicides and Germanides of the Alkali Metals, Z. Anorg. Allg. Chem., 1961, 312(3–4), p 214–220, in German (Equi Diagram; Crys Structure; Experimental)
4. 1962Hol: J.H. Holley, G.R. Neff, F.B. Weiler, and P.M. Winslow, Corrosivity and Contamination of Cesium in Ion Propulsion. NASA Document N62-15904, 1962, p 23 (Equi Diagram; Experimental)
5. 1963Hol: J.H. Holley, G.R. Neff, F.B. Weiler, and P.M. Winslow, Corrosivity and Contamination of Cesium in Ion Propulsion, Prog. Astronaut. Aeronaut., 1963, 9, p 341–356 (Equi Diagram; Experimental)