@article{MZ_1974__138_172081,
     author = {Christian G. Simader},
     title = {Bemerkungen \"uber {Schr\"odinger-Operatoren} mit stark singul\"aren {Potentialen.}},
     journal = {Mathematische Zeitschrift},
     pages = {53--70},
     publisher = {mathdoc},
     volume = {138},
     year = {1974},
     zbl = {0317.35028},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__138_172081/}
}