@article{1028999082,
author = {Robertson, S. A.},
title = {Generalised constant width for manifolds.},
journal = {Michigan Math. J.},
volume = {11},
number = {1},
year = {1964},
pages = { 97-105},
language = {en},
url = {http://dml.mathdoc.fr/item/1028999082}
}
Robertson, S. A. Generalised constant width for manifolds.. Michigan Math. J., Tome 11 (1964) no. 1, pp. 97-105. http://gdmltest.u-ga.fr/item/1028999082/