@article{MZ_1950__52_169121,
     author = {W. Specht},
     title = {Absch\"atzungen der {Wurzeln} algebraischer {Gleichungen}},
     journal = {Mathematische Zeitschrift},
     pages = {310--321},
     publisher = {mathdoc},
     volume = {52},
     year = {1950},
     url = {http://geodesic.mathdoc.fr/item/MZ_1950__52_169121/}
}