@article{1178245171,
author = {Wakakuwa, Hidekiyo},
title = {On $n$-dimensional Riemannian spaces admitting some groups of motions of order less than $n(n-1)/2$},
journal = {Tohoku Math. J. (2)},
volume = {6},
number = {2-3},
year = {1954},
pages = { 121-134},
language = {en},
url = {http://dml.mathdoc.fr/item/1178245171}
}
Wakakuwa, Hidekiyo. On $n$-dimensional Riemannian spaces admitting some groups of motions of order less than $n(n-1)/2$. Tohoku Math. J. (2), Tome 6 (1954) no. 2-3, pp. 121-134. http://gdmltest.u-ga.fr/item/1178245171/