Мартынов ВЛ, Сазонова ИЕ. The main directions and features of the development of the transport system of the Northwest of Russia in the second half of the XX - beginning of the XXI century. Вестник ТвГУ. Сер. география и геоэкология [Internet]. 2019 Feb. 28 [cited 2024 Nov. 13];(2):6-22. Available from: https://journal.tversu.ru/index.php/geo/article/view/214