@article{MS2_1965__17_165922,
     author = {Heiner Zieschang},
     title = {Algorithmen f\"ur einfache {Kurven} auf {Fl\"achen.}},
     journal = {Mathematica Scandinavica},
     pages = {17--40},
     publisher = {mathdoc},
     volume = {17},
     year = {1965},
     zbl = {0151.33005},
     url = {http://geodesic.mathdoc.fr/item/MS2_1965__17_165922/}
}