@article{10_4064_ap_73_1_37_57,
     author = {Andrzej Bielecki},
     title = {Topological conjugacy of cascades generated by gradient flows on the two-dimensional sphere},
     journal = {Annales Polonici Mathematici},
     pages = {37--57},
     publisher = {mathdoc},
     volume = {73},
     number = {1},
     year = {2000},
     doi = {10.4064/ap-73-1-37-57},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-73-1-37-57/}
}