Zharkynbek, T.; Kainarbayeva, Z.; Mukhamadiyev, N.; Tassibekov, K.; Yu, V. Copper(II) Complexes of Oxyphosphonates: Synthesis, Spectroscopic Characterization and Plant Growth-Stimulating Activity. Eurasian Chem.-Technol. J. 2026, 28, 163-170.