L. Zheleznova, L. Sliusarchuk, S. Kuleshov, and O. Trunova, “SYNTHESIS OF COMPOUND OXIDES OF LANTHANUM AND 3-d METALS (Co, Ni, Cu) AND THEIR HETEROMETALLIC COMPLEXES WITH SUCCINIC ACID AND PYRIDINE”, Ukr. Chem. Journ., vol. 91, no. 10, pp. 3-15, Nov. 2025.