@article{AFM_1975_581-600_a6,
     author = {Pekka Sorjonen},
     title = {Pontrjaginr\"aume mit einem reproduzierenden {Kern}},
     journal = {Annales Fennici Mathematici},
     publisher = {mathdoc},
     volume = {581-600},
     year = {1975},
     doi = {10.5186/aasfm.1975.594},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1975.594/}
}