@article{MZ_1921__9_167627,
     author = {R., Rothe},
     title = {Zum {Mittelwertsatze} der {Differentialrechnung}},
     journal = {Mathematische Zeitschrift},
     pages = {300--325},
     year = {1921},
     volume = {9},
     zbl = {48.0250.03},
     url = {http://geodesic.mathdoc.fr/item/MZ_1921__9_167627/}
}