Sigel, Helmit, and Bernhard Prijs. “Ternary Complexes in Solution, XXII: Comparison of the Stability of 2,2’-Bipyridyl-Cu2+-1,2-Diaminobenzene With Some Related Mixed-Ligand Complexes”.
CHIMIA, vol. 29, no. 3, Mar. 1975, p. 134,
https://doi.org/10.2533/chimia.1975.134.