Optimization of the methods of isolation, electrophoretic characterization, and antitumor efficacy of cytotoxic metabolites from the culture filtrate Bacillus subtilis B-7025 - H. V. Didenko; O. P. Kuzmenko; Ye. H. Shpak; I. A. Tavrovska; M. A. Nadirashvili; I. O. Blium; H. P. Potebnia (Reports of the National Academy of Sciences of Ukraine, 2012)