TY JOUR TI ANALYSIS OF THE INFLUENCE OF THE CURVATURE OF THE EARTH ON THE COMPILATION OF TOPOGRAPHIC MAPS KW topographic map KW curvature of the Earth’s surface KW projection methods KW cartography KW geoid KW distortion JO MOSCOW ECONOMIC JOURNAL AU Rozhkov, E.A. AU Gaytyan, E.A. PY 2025 IS 10 PB Electronic science