Copper–Bispidine Complexes: Synthesis and Complex Stability Study - Medved’ko, Aleksei V; Egorova, Bayirta V; Komarova, Alina A; Rakhimov, Rustem D; Krut’ko, Dmitri P; Kalmykov, Stepan N; Vatsadze, Sergey Z (ACS omega, 2016)