Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1981_259_1_a7, author = {V. P. Motornyi}, title = {Approximation in the mean of functions by {Fourier--Legendre} sums}, journal = {Doklady Akademii Nauk}, pages = {39--42}, publisher = {mathdoc}, volume = {259}, number = {1}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a7/} }
V. P. Motornyi. Approximation in the mean of functions by Fourier--Legendre sums. Doklady Akademii Nauk, Tome 259 (1981) no. 1, pp. 39-42. http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a7/