@article{IVM_1996_5_a0,
     author = {A. A. Alekseev},
     title = {On the absence of periodic solutions to a system of differential equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--7},
     publisher = {mathdoc},
     number = {5},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1996_5_a0/}
}