Vardapetyan, H.R., et al. “SOME PECULIARITIES OF BINDING PODOPHYLLOTOXIN AND ETOPOSIDE WITH DNA OF DIFFERENT GC-CONTENT”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 45, no. 2 (225), May 2011, pp. 29-33, doi:10.46991/PYSU:B/2011.45.2.029.