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@article{PORMA_1954__13_1_114728, author = {Haupt, Otto}, title = {�?ber {Bogen} mit lauter gleichartigen {Schmieggebilden}}, journal = {Portugaliae mathematica}, pages = {1--23}, publisher = {mathdoc}, volume = {13}, number = {1}, year = {1954}, mrnumber = {0064439}, zbl = {0058.16202}, language = {de}, url = {http://geodesic.mathdoc.fr/item/PORMA_1954__13_1_114728/} }
Haupt, Otto. �?ber Bogen mit lauter gleichartigen Schmieggebilden. Portugaliae mathematica, Tome 13 (1954) no. 1, pp. 1-23. http://geodesic.mathdoc.fr/item/PORMA_1954__13_1_114728/