title: [Discovery of viruses and the 1st doctoral dissertation on virology].
mesh_terms: D004212:Academic Dissertations as Topic / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D012190:Retroviridae / Q000302:isolation & purification; D012425:Russia (Pre-1917); D014027:Tobacco Mosaic Virus; D014773:Virology / Q000266:history*
vernacular_title: Ob otkrytii virusov i pervoĭ doktorskoĭ dissertatsii po virusologii