@article{VUU_2012_1_a6,
     author = {E. L. Tonkov},
     title = {The space of linear control systems and its canonical representatives},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {60--76},
     publisher = {mathdoc},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2012_1_a6/}
}