@article{JRAM_1929__161_149708,
     author = {Heinz Rau},
     title = {\"Uber die {Lebesguesschen} {Konstanten} der {Reihenentwicklungen} nach {Jacobischen} {Polynomen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {237--254},
     publisher = {mathdoc},
     volume = {161},
     year = {1929},
     zbl = {55.0796.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1929__161_149708/}
}