@article{VMUMM_1988_4_a25,
     author = {P. N. Savel'ev},
     title = {Dissipativity of systems of ordinary differential equations in the plane},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {93--96},
     publisher = {mathdoc},
     number = {4},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1988_4_a25/}
}