@article{1178245728,
author = {Iwamoto, Hideyuki},
title = {On the structure of Riemannian spaces whose holonomy groups fix a null-system},
journal = {Tohoku Math. J. (2)},
volume = {2},
number = {2},
year = {1950},
pages = { 109-135},
language = {en},
url = {http://dml.mathdoc.fr/item/1178245728}
}
Iwamoto, Hideyuki. On the structure of Riemannian spaces whose holonomy groups fix a null-system. Tohoku Math. J. (2), Tome 2 (1950) no. 2, pp. 109-135. http://gdmltest.u-ga.fr/item/1178245728/