TY JOUR TI The principle of common but differentiated responsibility in international environmental law: theoretical and legal aspect KW Principle; country; declaration; convention; differentiated; responsibility; obligations; environment; development; equality JO Bulletin of the Kaliningrad branch of the Saint-Petersburg University of the Ministry of Internal Affairs of Russia AU Ryzhenkov, A.Y. PY 2026 IS 0 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION