@article{1102817258, author = {Zalik, R. A.}, title = {Integral representation of Tchebycheff systems.}, journal = {Pacific J. Math.}, volume = {73}, number = {2}, year = {1977}, pages = { 553-568}, language = {en}, url = {http://dml.mathdoc.fr/item/1102817258} }
Zalik, R. A. Integral representation of Tchebycheff systems.. Pacific J. Math., Tome 73 (1977) no. 2, pp. 553-568. http://gdmltest.u-ga.fr/item/1102817258/