@article{RM_1990_45_1_a0,
     author = {S. Kh. Aranson and V. Z. Grines},
     title = {The topological classification of cascades on closed two-dimensional manifolds},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1--35},
     publisher = {mathdoc},
     volume = {45},
     number = {1},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1990_45_1_a0/}
}