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@article{PORMA_1944__4_3_114623, author = {Hadwiger, H.}, title = {Ein �?berdeckungss\"atze f\"ur den {Euklidischen} {Raum}}, journal = {Portugaliae mathematica}, pages = {140--144}, publisher = {mathdoc}, volume = {4}, number = {3}, year = {1944}, mrnumber = {0011108}, zbl = {0060.40610}, language = {de}, url = {http://geodesic.mathdoc.fr/item/PORMA_1944__4_3_114623/} }
Hadwiger, H. Ein �?berdeckungssätze für den Euklidischen Raum. Portugaliae mathematica, Tome 4 (1944) no. 3, pp. 140-144. http://geodesic.mathdoc.fr/item/PORMA_1944__4_3_114623/