@article{MZ_1918__1_167462,
     author = {O Blumenthai},
     title = {\"Uber trigonometrische {Polynome} mit einer {Minimumseigenschaft}},
     journal = {Mathematische Zeitschrift},
     pages = {285--302},
     publisher = {mathdoc},
     volume = {1},
     year = {1918},
     zbl = {46.0462.02},
     url = {http://geodesic.mathdoc.fr/item/MZ_1918__1_167462/}
}