1. G. Little, “On Some Metal Selenides,”Ann. Chem., 112,211- 214 (1859) in German. (Equi Diagram; Experimental)
2. H. Pelabon,“Action of Hydrogen on Sulfur and Selenium,”Ann. Chim Phys., 25, 362–432 (1902) in French. (Equi Diagram; Experi- mental)
3. H. Pelabon,J. Chim. Phys.,2, 328–330 (1904); quoted in [Han- sen]. (Equi Diagram; Experimental)
4. H. Pelabon,“Fusibility of Mixtures of Sulphur, Selenium, and Tellurium with Certain Metals,”Ann. Chim. Phys.,17, 526–566 (1909) in French. (Equi Diagram; Experimental)
5. N. Parravano,“The System: Bismuth-Selenium,”Gazz, Chim Ital.,43(1), 201–209 (1913) in Italian. (Equi Diagram, Thermo; Ex- perimental;#)