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@article{MZ_1967__96_170693, author = {Konrad J\"orgens}, title = {Zur {Spektraltheorie} der {Schr\"odinger-Operatoren.}}, journal = {Mathematische Zeitschrift}, pages = {355--372}, publisher = {mathdoc}, volume = {96}, year = {1967}, zbl = {0163.13601}, url = {http://geodesic.mathdoc.fr/item/MZ_1967__96_170693/} }
Konrad Jörgens. Zur Spektraltheorie der Schrödinger-Operatoren.. Mathematische Zeitschrift, Tome 96 (1967), pp. 355-372. http://geodesic.mathdoc.fr/item/MZ_1967__96_170693/