@article{1102971495, author = {Smith, S. W.}, title = {Cone relationships of biorthogonal systems.}, journal = {Pacific J. Math.}, volume = {35}, number = {3}, year = {1970}, pages = { 787-794}, language = {en}, url = {http://dml.mathdoc.fr/item/1102971495} }
Smith, S. W. Cone relationships of biorthogonal systems.. Pacific J. Math., Tome 35 (1970) no. 3, pp. 787-794. http://gdmltest.u-ga.fr/item/1102971495/