Gotsulya, A.S. 2017. Synthesis, structure and properties of N-R-amides and hydrazides of 2-[4-R-5-(theophylline-7ʹ-yl)-1,2,4-triazole-3-ylthio]acetic acid. Current issues in pharmacy and medicine: science and practice. 3 (Nov. 2017). DOI:https://doi.org/10.14739/2409-2932.2017.3.112748.