Geodesic
Representation of the wave function by a functional integral and the quasiclassical approximation in the scattering problem
Teoretičeskaâ i matematičeskaâ fizika, Tome 29 (1976) no. 1, pp. 52-58 Cet article a éte moissonné depuis la source Math-Net.Ru

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The nonstationary wave function $\Psi_k(x, T)$ with initial condition $\Psi_k(x, 0)=\exp(ikx)$ and stationary wave function $\psi_k(x)$ of the scattering problem are represented by functional integrals. This representation is used in the three-dimensional problem of scattering on an arbitrary (not necessarily central) potential to obtain the quasiclassical scattering amplitude and also the quantum corrections to it. 
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     title = {Representation of the wave function by a~functional integral and the quasiclassical approximation in the scattering problem},
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A. V. Kuzmenko. Representation of the wave function by a functional integral and the quasiclassical approximation in the scattering problem. Teoretičeskaâ i matematičeskaâ fizika, Tome 29 (1976) no. 1, pp. 52-58. http://geodesic.mathdoc.fr/item/TMF_1976_29_1_a4/

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