TY - BOOK AU - Fedoriuk M V AU - Niederle J AU - Tolar J TI - Semi-classical approximation in quantum mechanics U1 - 530.12 PY - 1981/// CY - Dordrecht: Holland PB - D Reidel Pub. KW - Physics KW - Quantum mechanics KW - Semi-classical approximation N1 - Translated from the Russian ER -