@article{1103034567, author = {McLachlan, E. K.}, title = {Extremal elements of the convex cone of semi-norms.}, journal = {Pacific J. Math.}, volume = {13}, number = {4}, year = {1963}, pages = { 1335-1342}, language = {en}, url = {http://dml.mathdoc.fr/item/1103034567} }
McLachlan, E. K. Extremal elements of the convex cone of semi-norms.. Pacific J. Math., Tome 13 (1963) no. 4, pp. 1335-1342. http://gdmltest.u-ga.fr/item/1103034567/