Tikhomirov ОА. Environmental geography. Subject, objectand tasks of siense. Вестник ТвГУ. Сер. география и геоэкология [Internet]. 2022 Jun. 29 [cited 2024 Nov. 13];(1 (33):6-13. Available from: https://journal.tversu.ru/index.php/geo/article/view/264