RyazanovaО. А., VoloshinI. М., L. V. Dubey, and V. N. Zozulya. “Spectroscopic Study of Pheophorbide-a Methyl Ether Binding to Synthetic Polynucleotides and DNA”. Biophysical Bulletin, Vol. 2, no. 23, June 2009, pp. 20-29, https://periodicals.karazin.ua/biophysvisnyk/article/view/4268.