@article{MAN_1974__209_162602,
     author = {J.S. Cohen and A.B. Stephens},
     title = {Tensor {Norms} on l(n) .. l(n).},
     journal = {Mathematische Annalen},
     pages = {277--290},
     publisher = {mathdoc},
     volume = {209},
     year = {1974},
     zbl = {0273.46059},
     url = {http://geodesic.mathdoc.fr/item/MAN_1974__209_162602/}
}