“Ethylation of 5-Acetyl-5-Methyl-7-Phenyl-4,7-Dihydro[1,2,4]triazolo[1,5-A]pyrimidine”. 2013. V. N. Karazin Kharkiv National University Bulletin. Chemical Series, no. 22 (December): 39-44. https://doi.org/10.26565/2220-637X-2013-22-04.