Kovalchuk, A. and Shkut, O. (2025) “COMPARATIVE ANALYSIS OF THE 1977 BALTIC SEA LEVEL SYSTEM AND THE EUROPEAN VERTICAL REFERENCE SYSTEM WITHIN THE FRAMEWORK OF TRANSITION TO A UNIFIED EUROPEAN SPATIAL DATA INFRASTRUCTURE”, Bulletin of Taras Shevchenko National University of Kyiv. Military-special sciences, (3(63), pp. 93–98. doi:10.17721/1728-2217.2025.63.93-98.