@article{1138846475,
author = {Yano, Kentaro and Okumura, Masafumi},
title = {Invariant submanifolds of a manifold with $(f,\,g,\,u,\,v,\,\l ambda)$-structure},
journal = {Kodai Math. Sem. Rep.},
volume = {24},
number = {1},
year = {1972},
pages = { 75-90},
language = {en},
url = {http://dml.mathdoc.fr/item/1138846475}
}
Yano, Kentaro; Okumura, Masafumi. Invariant submanifolds of a manifold with $(f,\,g,\,u,\,v,\,łambda)$-structure. Kodai Math. Sem. Rep., Tome 24 (1972) no. 1, pp. 75-90. http://gdmltest.u-ga.fr/item/1138846475/