@article{10_4153_CMB_1983_061_8,
     author = {Gil-Medrano, O. and Naveira, A. M.},
     title = {The {Gauss-Bonnet} {Integrand} for a {Class} of {Riemannian} {Manifolds} {Admitting} {Two} {Orthogonal} {Complementary} {Foliations}},
     journal = {Canadian mathematical bulletin},
     pages = {358--364},
     year = {1983},
     volume = {26},
     number = {3},
     doi = {10.4153/CMB-1983-061-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1983-061-8/}
}