@article{MZ_1996__221_1_174856,
     author = {Bo Berndtsson},
     title = {... and {Schr\"odinger} operators.},
     journal = {Mathematische Zeitschrift},
     pages = {401--414},
     publisher = {mathdoc},
     volume = {221},
     number = {1},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MZ_1996__221_1_174856/}
}