@article{RM_1986_41_5_a28,
     author = {Kh. Zholondek},
     title = {Bifurcations of a family of vector fields on the plane that touch the coordinate axes},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {169--170},
     publisher = {mathdoc},
     volume = {41},
     number = {5},
     year = {1986},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1986_41_5_a28/}
}