@article{10_4153_CMB_1969_098_1, author = {Houh, C.S.}, title = {On a {Riemannian} {Manifold} {M} 2n with an {Almost} {Tangent} {Structure}}, journal = {Canadian mathematical bulletin}, pages = {759--769}, year = {1969}, volume = {12}, number = {6}, doi = {10.4153/CMB-1969-098-1}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-098-1/} }