EFFECT OF HUMIC SUBSTANCES ON FUNGAL MELANIN FORMATION ArticleYakimenko O.S., Belik A.A., Kalabin G.A., Gladkova M.M., Terekhovа V.A., Neizvestnaya N.G.17th Meeting of the International Humic Substances Society "Natural Organic Matter: Structure-Dynamics Innovative Applications": Abstract book. Ioannina, Greece, September 1-5 2014 г.. 2014. С. 256-257