@article{MM2_1973__8_154138,
     author = {Manfred Klingmann},
     title = {Kurven auf orientierbaren {Fl\"achen.}},
     journal = {Manuscripta mathematica},
     pages = {111--130},
     publisher = {mathdoc},
     volume = {8},
     year = {1973},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MM2_1973__8_154138/}
}