Dyachenko, I.V., Vaskevich, R.I. and Vovk, M.V. 2016. Polycyclic systems with the pyridopyrimidine and pteridine nuclei. Journal of Organic and Pharmaceutical Chemistry. 14, 2(54) (Jun. 2016), 7–28. DOI:https://doi.org/10.24959/ophcj.16.887.