1. Belovitskaya AA (1987) General bibliology: a manual [Obshchee knigovedenie: ucheb. posobie]. Moscow: Kniga. (In Russ.).
2. (2016) Situation in the market: global market for electronic books 2014-2015. Knizhnaya industriya. URL: https://www.bookind.ru/categories/abroad/3975/ ( accessed 20.06.2016). (In Russ.).
3. Zemlyanova LM (2004) Communication science and media: EnglishRussian explanatory dictionary of concepts and terms [Kommunikativistika i sredstva informatsii: anglorusskii tolkovyi slovar' kontseptsii i terminov]. Moscow: Moscow Univ. Publ. (In Russ.).
4. Ivin’skii B (1968) From the report of the Polish bibliographer Boleslav Ivinsky at the International Bibliographic Congress in 1910 in Brussels. Kniga. Issledovanie i materialy, 16: 86-87. (In Russ.).
5. Kirillova NB (2005) Media culture: from modern to postmodern [Mediakul’tura: ot moderna k postmodernu]. Moscow: Acad. project. (In Russ.).