@article{1178243769,
author = {Kashiwabara, Shobin},
title = {On the parallelisability under Riemannian metrics of direction fields over $3$-dimensional manifolds, II},
journal = {Tohoku Math. J. (2)},
volume = {15},
number = {4},
year = {1963},
pages = { 332-334},
language = {en},
url = {http://dml.mathdoc.fr/item/1178243769}
}
Kashiwabara, Shobin. On the parallelisability under Riemannian metrics of direction fields over $3$-dimensional manifolds, II. Tohoku Math. J. (2), Tome 15 (1963) no. 4, pp. 332-334. http://gdmltest.u-ga.fr/item/1178243769/