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@article{MM2_1984__48_155018, author = {Rainer Hempel}, title = {Periodic {Schr\"odinger} {Operators} with {(Non-Periodic)} {Magnetic} and {Electric} {Potentials.}}, journal = {Manuscripta mathematica}, pages = {19--38}, publisher = {mathdoc}, volume = {48}, year = {1984}, zbl = {0566.35033}, url = {http://geodesic.mathdoc.fr/item/MM2_1984__48_155018/} }
Rainer Hempel. Periodic Schrödinger Operators with (Non-Periodic) Magnetic and Electric Potentials.. Manuscripta mathematica, Tome 48 (1984), pp. 19-38. http://geodesic.mathdoc.fr/item/MM2_1984__48_155018/