@article{FORUM_1990__2_3_141647,
     author = {Stefan Geiss},
     title = {Grothendieck {Numbers} and {Volume} {Ratios} of {Operators} on {Banach} {Spaces.}},
     journal = {Forum mathematicum},
     pages = {323--340},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {1990},
     zbl = {0707.47016},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1990__2_3_141647/}
}