@article{JRAM_1921__151_149500,
     author = {J. Schur},
     title = {\"Uber lineare {Transformationen} in der {Theorie} der unendlichen {Reihen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {79--111},
     publisher = {mathdoc},
     volume = {151},
     year = {1921},
     zbl = {47.0197.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1921__151_149500/}
}