@article{MAN_1912__72_158567,
     author = {S. Chapman},
     title = {On the {Summability} of {Series} of {Legendre's} {Functions.}},
     journal = {Mathematische Annalen},
     pages = {211--227},
     year = {1912},
     volume = {72},
     zbl = {43.0551.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1912__72_158567/}
}