ЦЫГАНОВ, А. А. Environmental and economic evaluation of water quality the Volga River in Tver. HERALD OF TVER STATE UNIVERSITY. SERIES: GEOGRAPHY AND GEOECOLOGY, [S. l.], n. 4, p. 61–72, 2019. Disponível em: https://journal.tversu.ru/index.php/geo/article/view/99. Acesso em: 13 nov. 2024.