Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1976_19_2_a14, author = {V. P. Motornyi}, title = {Some extremal problems of theory of quadrature and approximation of functions}, journal = {Matemati\v{c}eskie zametki}, pages = {299--311}, publisher = {mathdoc}, volume = {19}, number = {2}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1976_19_2_a14/} }
V. P. Motornyi. Some extremal problems of theory of quadrature and approximation of functions. Matematičeskie zametki, Tome 19 (1976) no. 2, pp. 299-311. http://geodesic.mathdoc.fr/item/MZM_1976_19_2_a14/