Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{RCM_1989__23_1-4_181821, author = {A. Al-Zamel and R. Khalil}, title = {Vector valued {Chebechev} systems}, journal = {Revista colombiana de matematicas}, pages = {25--34}, publisher = {mathdoc}, volume = {23}, number = {1-4}, year = {1989}, zbl = {0718.41034}, url = {http://geodesic.mathdoc.fr/item/RCM_1989__23_1-4_181821/} }
A. Al-Zamel; R. Khalil. Vector valued Chebechev systems. Revista colombiana de matematicas, Tome 23 (1989) no. 1-4, pp. 25-34. http://geodesic.mathdoc.fr/item/RCM_1989__23_1-4_181821/