@article{SM_2018_209_1_a4,
     author = {V. E. Kruglov and D. S. Malyshev and O. V. Pochinka},
     title = {A~multicolour graph as a~complete topological invariant for $\Omega$-stable flows without periodic trajectories on surfaces},
     journal = {Sbornik. Mathematics},
     pages = {96--121},
     publisher = {mathdoc},
     volume = {209},
     number = {1},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2018_209_1_a4/}
}