@article{1029004072, author = {Cairns, Grant}, title = {Totally umbilic Riemannian foliations.}, journal = {Michigan Math. J.}, volume = {37}, number = {1}, year = {1990}, pages = { 145-159}, language = {en}, url = {http://dml.mathdoc.fr/item/1029004072} }
Cairns, Grant. Totally umbilic Riemannian foliations.. Michigan Math. J., Tome 37 (1990) no. 1, pp. 145-159. http://gdmltest.u-ga.fr/item/1029004072/