1. B. M. Lipinskikh and V. I. Kiselev, “Oxidation of liquid metals and alloys by gaseous oxygen,” Izv. Akad. Nauk SSSR, Metally No. 5, 51–54 (1974).
2. A. V. Vakhobov and I. N. Ganiev, Binary Barium–Strontium Phase Diagrams” (Donish, Dushanbe, 1992).
3. N. V. Belousova, V. M. Denisov, and S. A. Istomin, Interaction of Liquid Metals and Alloys with Oxygen (Ural. Otd. Ross. Akad. Nauk, Yekaterinburg, 2004).
4. V. M. Denisov, S. A. Istomin, O. I. Podkopayev, et al., Germanium, its Compounds and Alloys (Ural. Otd. Ross. Akad. Nauk, Yekaterinburg, 2002).
5. K. P. Violetta and M. P. Lydia, “Phase diagram of the Ge-rich Ba–Ge system and characterization of single-phase BaGe4,” Alloys Compd., 599, 228–233 (2014).