@article{PORMA_1981__40_3_115455,
     author = {Thomas, Gary M.},
     title = {Jointly prescalar sets in {Banach} algebras},
     journal = {Portugaliae mathematica},
     pages = {305--310},
     publisher = {mathdoc},
     volume = {40},
     number = {3},
     year = {1981},
     mrnumber = {0819895},
     zbl = {0578.46042},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1981__40_3_115455/}
}