Преображенский, Юрий Владимирович. 2019. “Economic Micro-Zoning of Tver Region (towards the Question of the Economy Cell Selection)”. HERALD OF TVER STATE UNIVERSITY. SERIES: GEOGRAPHY AND GEOECOLOGY, no. 4 (February):110-18. https://journal.tversu.ru/index.php/geo/article/view/103.