@article{MT_2007_10_2_a0,
     author = {V. N. Berestovskii and Yu. G. Nikonorov},
     title = {Regular and {Quasiregular} {Isometric} {Flows} on {Riemannian} {Manifolds}},
     journal = {Matemati\v{c}eskie trudy},
     pages = {3--18},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2007_10_2_a0/}
}