Abbas-Temirek, H.H. and Abo-Bakr, A.M. 2016. Reactions with heterocyclic amidines: Synthesis of several new pyrazolo[1,5-a]pyrimidines and pyrazolo[1,5-a][1,3,5]triazines. European Journal of Chemistry. 7, 1 (Mar. 2016), 107–114. DOI:https://doi.org/10.5155/eurjchem.7.1.107-114.1369.