@article{MZ_1972__126_171731,
     author = {Oswald Giering},
     title = {Verallgemeinerung zweier {S\"atze} von {Santal\'o} auf windschiefe {Fl\"achen.}},
     journal = {Mathematische Zeitschrift},
     pages = {171--175},
     publisher = {mathdoc},
     volume = {126},
     year = {1972},
     zbl = {0223.53009},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__126_171731/}
}