@article{CM_1935__2__26_0,
     author = {Ostrowski, Alexander},
     title = {Beitr\"age zur {Topologie} der orientierten {Linienelemente} {I.} {\"Uber} eine topologische {Versch\"arfung} des {Rolleschen} {Satzes}},
     journal = {Compositio Mathematica},
     pages = {26--49},
     publisher = {Johnson Reprint Corporation},
     volume = {2},
     year = {1935},
     zbl = {0011.17701},
     language = {de},
     url = {http://www.numdam.org/item/CM_1935__2__26_0/}
}