@article{1195581608, author = {Kubota, Tadahiko}, title = {Zur Geometrie der Kr\"ummungskugelkongruenzen}, journal = {Proc. Imp. Acad.}, volume = {4}, number = {10}, year = {1928}, pages = { 584-585}, language = {de}, url = {http://dml.mathdoc.fr/item/1195581608} }
Kubota, Tadahiko. Zur Geometrie der Krümmungskugelkongruenzen. Proc. Imp. Acad., Tome 4 (1928) no. 10, pp. 584-585. http://gdmltest.u-ga.fr/item/1195581608/