Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1972_204_4_a4, author = {V. P. Motornyi}, title = {On mean convergence of {Fourier} series in {Legendre} polynomials}, journal = {Doklady Akademii Nauk}, pages = {788--790}, publisher = {mathdoc}, volume = {204}, number = {4}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1972_204_4_a4/} }
V. P. Motornyi. On mean convergence of Fourier series in Legendre polynomials. Doklady Akademii Nauk, Tome 204 (1972) no. 4, pp. 788-790. http://geodesic.mathdoc.fr/item/DAN_1972_204_4_a4/