Слижов (Slizhov)Ю. (Jurij) Г. (Gennad’evich), Хасанов (Hasanov)В. (Viktor) В. (Vazikovich), and Чумаков (Chumakov)А. (Anton) А. (Aleksandrovich). “CHEMICAL COMPOSITION OF WATER-STEAM DISTILLATE AND ORGANIC EXTRACTS OF RAW MEDICINAL BIRCH FUNGUS CHAGA INONOTUS OBLIQUUS (PERS.) PILAT”. Chemistry of Plant Raw Material, no. 2, Apr. 2015, pp. 149-53, doi:10.14258/jcprm.201502600.