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@article{MZ_1936__41_168679, author = {W. Blaschke}, title = {Integralgeometrie 13. {Zur} {Kinematik}}, journal = {Mathematische Zeitschrift}, pages = {465--478}, publisher = {mathdoc}, volume = {41}, year = {1936}, zbl = {0014.27406}, url = {http://geodesic.mathdoc.fr/item/MZ_1936__41_168679/} }
W. Blaschke. Integralgeometrie 13. Zur Kinematik. Mathematische Zeitschrift, Tome 41 (1936), pp. 465-478. http://geodesic.mathdoc.fr/item/MZ_1936__41_168679/