@article{MZ_1969__111_171204,
     author = {Upke-Walther Schmincke},
     title = {\"Uber das {Verhalten} der {Eigenfunktionen} eines singul\"aren elliptischen {Differentialoperators.}},
     journal = {Mathematische Zeitschrift},
     pages = {267--288},
     publisher = {mathdoc},
     volume = {111},
     year = {1969},
     zbl = {0181.11601},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__111_171204/}
}