1. Indicates key paper07Por: M.A. Portevin, “The Alloys of Nickel and Lead”,Rev. Metall., 4, 814–818 (1907) in French. (Equi Diagram; Experimental; Indicates presence of a phase diagram)
2. Indicates key paper08Vos: G. Voss, “The Nickel-Lead System”,Z. Anorg. Chem., 57, 45–48 (1908) in German. (Equi Diagram; Experimental; Indicates presence of a phase diagram)
3. 30Tam: G. Tammann and W. Oelsen, “On the Variation of Nickel Concentration in Lead-Rich Alloys with Temperature”,Z. Anorg. Chem., 186, 266–267 (1930) in German. (Equi Diagram; Experimental)
4. 33Tam: G. Tammann and G. Bandel, “Comparison of the Solubility of Lead Isotope Thorium B with that of Lead in Bi, Sn and Ni”,Z. Metallkd., 25, 156 (1933) in German. (Equi Diagram; Experimental)
5. 55Pel: E. Pelzel, “The Solubility of Cu, Ni and Co in Liquid Lead”,Metall, 9, 692–694 (1955) in German. (Equi Diagram; Experimental; Indicates presence of a phase diagram)