@article{SM_1973_19_3_a1,
     author = {S. Kh. Aranson and V. Z. Grines},
     title = {On~some invariants of dynamical systems on two-dimensional manifolds (necessary and sufficient conditions for the topological equivalence of transitive dynamical systems)},
     journal = {Sbornik. Mathematics},
     pages = {365--393},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1973},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1973_19_3_a1/}
}