ZEMLYANAYA, N. I.; KRAVCHENKO, S. V.; NIKISHINA, L. E.; LIPSON, V. V. Synthesis and analysis of the quality of the substance of 7,8-dihydro-3,7,7-trimethyl-4-styryl-2H-pyrazolo[3,4-b]quinolin-5(4H,6H,9H)-one – a new biologically active compound with complex antidiabetic action. Kharkiv University Bulletin. Chemical Series, n. 29, p. 53-60, 27 Dec. 2017.