@article{JDM_1914__23_145402,
     author = {Michel Petrovitch},
     title = {Th\'eor\`eme de la moyenne relatif aux int\'egrales des arcs.},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {91--97},
     publisher = {mathdoc},
     volume = {23},
     year = {1914},
     zbl = {45.0454.03},
     url = {http://geodesic.mathdoc.fr/item/JDM_1914__23_145402/}
}