Fima, P., and J. Romanowska. “Activity of Bismuth in Liquid Ag-Bi-Ni Alloys Determined by Equilibrium Saturation Method”. Journal of Mining and Metallurgy, Section B: Metallurgy, Vol. 51, no. 1, Jan. 2015, p. 105, https://aseestant.ceon.rs/index.php/jmm/article/view/6462.