@article{MAN_1967__171_161550,
     author = {B. GRAMSCH},
     title = {Die {Klasse} metrischer linearer {R\"aume} ..... .},
     journal = {Mathematische Annalen},
     pages = {61--78},
     year = {1967},
     volume = {171},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1967__171_161550/}
}