CLASSICAL-LIMIT QUANTIZATION OF N0N-SEPARABLE SYSTEMS: MULTI-DIMENSIONAL WKB PERTURBATION THEORY

ON GEOMETRIC QUANTIZATION OF CLASSICAL SYSTEMS

CLASSICAL-QUANTUM CORRESPONDENCE IN TIME DEPENDENT PERTURBATION THEORY

QUANTUM MECHANICAL PERTURBATION THEORY

QUANTUM MECHANICAL PERTURBATION THEORY

QUANTIZATION ON A LATTICE: RELATIONSHIP CLASSICAL-QUANTUM

On the quantization of classical systems