@article{MZ_1978__162_172726,
     author = {Georg Schumacher and Reynir Axelsson},
     title = {Analytische {Erweiterungen} von {Produktr\"aumen.}},
     journal = {Mathematische Zeitschrift},
     pages = {189--200},
     publisher = {mathdoc},
     volume = {162},
     year = {1978},
     zbl = {0371.32008},
     url = {http://geodesic.mathdoc.fr/item/MZ_1978__162_172726/}
}