Popov, Anatolii, Illia Kapitanov, Anna Serdyuk, and Aleksandr Sumeiko. “REACTIVITY OF NUCLEOPHILES AND α-EFFECT IN SUBSTITUTION PROCESSES AT ELECTRON - DEFICIENCY CENTERS”. Ukrainian Chemistry Journal 86, no. 7 (August 20, 2020): 3–31. Accessed September 20, 2020. https://ucj.org.ua/index.php/journal/article/view/194.