@article{MAN_1975__213_162669,
     author = {Bernd Rosenberger},
     title = {Approximationszahlen, p-nukleare {Operatoren} und {Hilbertraumcharakterisierungen.}},
     journal = {Mathematische Annalen},
     pages = {211--222},
     publisher = {mathdoc},
     volume = {213},
     year = {1975},
     zbl = {0296.47017},
     url = {http://geodesic.mathdoc.fr/item/MAN_1975__213_162669/}
}