@article{MOMA_1964__68_177252,
     author = {Oswald Giering},
     title = {\"Uber das {Kr\"ummungsverhalten} der einer {Fl\"ache} umschriebenen {Torsen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {194--212},
     publisher = {mathdoc},
     volume = {68},
     year = {1964},
     zbl = {0119.37205},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1964__68_177252/}
}