@article{VUU_2010_2_a0,
     author = {V. I. Rodionov},
     title = {On solvability of impulse systems},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {3--18},
     year = {2010},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2010_2_a0/}
}