@article{MZ_1977__153_172498,
     author = {Gerhard Freiling},
     title = {Ein {\"Aquikonvergenzsatz} f\"ur eine {Klasse} von singul\"aren {Differentialoperatoren.}},
     journal = {Mathematische Zeitschrift},
     pages = {255--266},
     publisher = {mathdoc},
     volume = {153},
     year = {1977},
     zbl = {0339.34020},
     url = {http://geodesic.mathdoc.fr/item/MZ_1977__153_172498/}
}