Romanenko, M. I., O. P. Dolhikh, D. H., Ivanchenko, and K. V. Aleksandrova. “Synthesis, Physical and Chemical Properties of 7-Methylxanthine Derivatives”. Current issues in pharmacy and medicine: science and practice, no. 3 (November 1, 2017). Accessed December 5, 2024. http://pharmed.zsmu.edu.ua/article/view/113546.