@article{MZ_1970__116_171397,
     author = {Heinrich Begehr},
     title = {\"Uber {Defektbegriffe} in der {Theorie} der meromorphen {Funktionen.}},
     journal = {Mathematische Zeitschrift},
     pages = {349--354},
     publisher = {mathdoc},
     volume = {116},
     year = {1970},
     zbl = {0198.11002},
     url = {http://geodesic.mathdoc.fr/item/MZ_1970__116_171397/}
}