@article{VUU_2014_2_a8,
     author = {L. P. Ossipkov},
     title = {Irregular and regular forces in stellar systems},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {121--145},
     publisher = {mathdoc},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2014_2_a8/}
}