Media type: E-Article Title: Perturbation theory for one-dimensional Schrodinger equations that can be used in a region where the wave function is small Contributor: Pekar, V. S. imprint: Springer Science and Business Media LLC, 1971 Published in: Theoretical and Mathematical Physics Language: English DOI: 10.1007/bf01043417 ISSN: 0040-5779; 1573-9333 Keywords: Mathematical Physics ; Statistical and Nonlinear Physics Origination: Footnote: