TY JOUR TI Usage of polyhedral projections for mapping small Solar System bodies KW Extraterrestrial cartography KW mathematical cartography KW polyhedral projections KW small Solar system body KW triaxial ellipsoid JO Izvestia Vuzov. Geodesy and Aerophotosurveying AU Varuschenko, A.S. AU Nyrtsov, M.V. PY 2026 IS 70 PB MIIGAiK