Quasiclassical expansion of the amplitude of potential scattering

Path integral representation for inelastic scattering amplitude and its quasiclassical approximations

Representation of the scattering amplitude by a functional integral and quasiclassical asymptotic behavior in quantum mechanics

General expansions of a scattering amplitude

A quasiclassical expansion of solutions of the Schr�dinger equation for a step potential

Semi-classical expansion for the scattering by a complex potential

Representation of the wave function by a functional integral and the quasiclassical approximation in the scattering problem