%0 Journal Article %A R. Ch. Kulaev %T On the sing of the Green's function of the boundary value problem for the fourth-order equation on a~graph %J Vladikavkazskij matematičeskij žurnal %D 2013 %P 19-29 %V 15 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMJ_2013_15_4_a3/ %G ru %F VMJ_2013_15_4_a3