%0 Journal Article %A M. I. Belishev %T On boundary controllability of dynamical system gouverned by the wave equation on a~class of graphs (trees) %J Zapiski Nauchnykh Seminarov POMI %D 2004 %P 23-47 %V 308 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2004_308_a2/ %G ru %F ZNSL_2004_308_a2