Ukrainets, I. V., K. A. Taran, and N. L. Bereznyakova. “N-Phenethyl-2-Hydroxy-4-Oxo-4H-pyrido[1,2-a]pyrimidine-3-Carboxamides As Possible Anti-Viral Agents”. Journal of Organic and Pharmaceutical Chemistry, vol. 12, no. 2(46), June 2014, pp. 65-69, doi:10.24959/ophcj.14.789.