@article{MZ_1959__71_169816,
     author = {Martin Barner and Wendelin Degen},
     title = {\"Uber sich schlie{\ss}ende {Figuren} asymptotisch transformierter {Kurven} und {W-transformierter} {Fl\"achen.}},
     journal = {Mathematische Zeitschrift},
     pages = {361--379},
     publisher = {mathdoc},
     volume = {71},
     year = {1959},
     zbl = {0089.17102},
     url = {http://geodesic.mathdoc.fr/item/MZ_1959__71_169816/}
}