Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1971_10_4_a2, author = {I. N. Pak}, title = {Sums of series of {Legendre} polynomials}, journal = {Matemati\v{c}eskie zametki}, pages = {387--398}, publisher = {mathdoc}, volume = {10}, number = {4}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1971_10_4_a2/} }
I. N. Pak. Sums of series of Legendre polynomials. Matematičeskie zametki, Tome 10 (1971) no. 4, pp. 387-398. http://geodesic.mathdoc.fr/item/MZM_1971_10_4_a2/