@article{AFM_1975_1_1_a11,
     author = {Veikko T. Purmonen},
     title = {Ein abstraktes {Cauchysches} {Problem}},
     journal = {Annales Fennici Mathematici},
     pages = {125--142},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {1975},
     doi = {10.5186/aasfm.1975.0116},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1975.0116/}
}