Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1974_16_5_a18, author = {Yu. N. Subbotin}, title = {Extremal functional interpolation and approximation by splines}, journal = {Matemati\v{c}eskie zametki}, pages = {843--854}, publisher = {mathdoc}, volume = {16}, number = {5}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1974_16_5_a18/} }
Yu. N. Subbotin. Extremal functional interpolation and approximation by splines. Matematičeskie zametki, Tome 16 (1974) no. 5, pp. 843-854. http://geodesic.mathdoc.fr/item/MZM_1974_16_5_a18/