@article{MZM_1997_62_5_a3,
     author = {A. A. Borisenko},
     title = {Negative exterior curvature foliations on compact {Riemannian} manifolds},
     journal = {Matemati\v{c}eskie zametki},
     pages = {673--676},
     publisher = {mathdoc},
     volume = {62},
     number = {5},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_62_5_a3/}
}