@article{VUU_2005_1_a5,
     author = {A. V. Ljovin},
     title = {On the question of non-forestalling positional control},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {91--100},
     publisher = {mathdoc},
     number = {1},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2005_1_a5/}
}