@article{1138833653, author = {Yano, Kentaro and Ki, U Hang}, title = {On $(f,\,g,\,u,\,v,\,w,\,\l ambda ,$ $\mu ,\,\nu)$-structures satisfying $\l ambda^{2}+\mu^{2}+\nu^{2}=1$}, journal = {Kodai Math. Sem. Rep.}, volume = {29}, number = {3}, year = {1978}, pages = { 285-307}, language = {en}, url = {http://dml.mathdoc.fr/item/1138833653} }
Yano, Kentaro; Ki, U Hang. On $(f,\,g,\,u,\,v,\,w,\,łambda ,$ $\mu ,\,\nu)$-structures satisfying $łambda^{2}+\mu^{2}+\nu^{2}=1$. Kodai Math. Sem. Rep., Tome 29 (1978) no. 3, pp. 285-307. http://gdmltest.u-ga.fr/item/1138833653/