Щекотилов, В. Г., Шалаева, М. В., & Щекотилова, С. Н. (2018). Adaptation in GIS and geoportals of multi-leaved plans of giving of the 19th century. HERALD OF TVER STATE UNIVERSITY. SERIES: GEOGRAPHY AND GEOECOLOGY, (2). Retrieved from https://journal.tversu.ru/index.php/geo/article/view/42