@article{DE_1975_11_4_a9,
     author = {Yu. V. Churin},
     title = {The vanishing of the periodic solutions of quasihomogeneous systems that have only simple exceptional sets},
     journal = {Differencialʹnye uravneni\^a},
     pages = {678--686},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_4_a9/}
}