@article{1138039391, author = {Yamashita, Shinji}, title = {Local maxima of the spherical derivative}, journal = {Kodai Math. J.}, volume = {14}, number = {1}, year = {1991}, pages = { 163-172}, language = {en}, url = {http://dml.mathdoc.fr/item/1138039391} }
Yamashita, Shinji. Local maxima of the spherical derivative. Kodai Math. J., Tome 14 (1991) no. 1, pp. 163-172. http://gdmltest.u-ga.fr/item/1138039391/