@article{MZ_1969__109_171143,
     author = {Hans-J\"org Reiffen},
     title = {Kontrahierbare analytische {Algebren.}},
     journal = {Mathematische Zeitschrift},
     pages = {253--268},
     publisher = {mathdoc},
     volume = {109},
     year = {1969},
     zbl = {0174.38902},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__109_171143/}
}