Ivanchenko, D. G. “Synthesis, Physical-Chemical and Biological Properties of 1.8-Disubstituted of Theobromine. V. 8-Benzylidenhydrazino-1-P-Methylbenzyltheobromines”. Zaporozhye Medical Journal, vol. 17, no. 5, Nov. 2015, doi:10.14739/2310-1210.2015.5.53768.