@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/