“THE MORPHOLOGICAL OBSERVATION OF MYCELIA OF SEVERAL ARMENIAN STRAINS OF MEDICINAL BRACKET FUNGUS FOMES FOMENTARIUS (L.) FR. (POLYPORALES, AGARICOMYCETES)” (2019) Proceedings of the YSU B: Chemical and Biological Sciences, 53(2 (249), pp. 91–96. doi:10.46991/PYSUB.2019.53.2.091.