@article{PORMA_1948__7_2_114660,
     author = {Hadwiger, H.},
     title = {Beweis einer extremaleigenschaft der symmetrischen {Kugelzone}},
     journal = {Portugaliae mathematica},
     pages = {73--85},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {1948},
     mrnumber = {0028597},
     zbl = {0032.18901},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1948__7_2_114660/}
}