@article{1214428817,
author = {Yano, Kentaro and Ishihara, Shigeru},
title = {On a problem of Nomizu-Smyth on a normal contact Riemannian manifold.},
journal = {J. Differential Geom.},
volume = {3},
number = {1-2},
year = {1969},
pages = { 45-58},
language = {en},
url = {http://dml.mathdoc.fr/item/1214428817}
}
Yano, Kentaro; Ishihara, Shigeru. On a problem of Nomizu-Smyth on a normal contact Riemannian manifold.. J. Differential Geom., Tome 3 (1969) no. 1-2, pp. 45-58. http://gdmltest.u-ga.fr/item/1214428817/