Zheleznova, L. .; Sliusarchuk, L. .; Kuleshov , S.; Trunova, O. . 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. 2025, 91, 3-15.