@article{CMJ_1998__48_4_a11,
     author = {Scheffold, Egon},
     title = {\"Uber symmetrische {Operatoren} auf {Banachverb\"anden} und {Arens-Regularit\"at}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {747--753},
     publisher = {mathdoc},
     volume = {48},
     number = {4},
     year = {1998},
     mrnumber = {1658261},
     zbl = {0954.46012},
     language = {ge},
     url = {https://geodesic-test.mathdoc.fr/item/CMJ_1998__48_4_a11/}
}