@article{10_4064_sm144_3_5,
     author = {Mikio Kato and Lech Maligranda and Yasuji Takahashi},
     title = {On {James} and {Jordan{\textendash}von} {Neumann} constants and
the normal structure coefficient of {Banach} spaces},
     journal = {Studia Mathematica},
     pages = {275--295},
     year = {2001},
     volume = {144},
     number = {3},
     doi = {10.4064/sm144-3-5},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm144-3-5/}
}