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@article{MOMA_1965__69_177272, author = {Oswald Giering}, title = {Zur konstruktiven {Differentialgeometrie} der {Fl\"achenstreifen.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {30--34}, publisher = {mathdoc}, volume = {69}, year = {1965}, zbl = {0139.14802}, url = {http://geodesic.mathdoc.fr/item/MOMA_1965__69_177272/} }
Oswald Giering. Zur konstruktiven Differentialgeometrie der Flächenstreifen.. Monatshefte für Mathematik, Tome 69 (1965), pp. 30-34. http://geodesic.mathdoc.fr/item/MOMA_1965__69_177272/