@article{MAN_1923__89_158995,
     author = {K. Popoff},
     title = {\"Uber die {Gewinnung} summierbarer {Polynomreiben} aus summierbaren {Fourierreihen}},
     journal = {Mathematische Annalen},
     pages = {122--125},
     publisher = {mathdoc},
     volume = {89},
     year = {1923},
     zbl = {49.0720.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1923__89_158995/}
}