%0 Journal Article %A R. Ch. Kulaev %T Comparison theorems for Green function of a fourth order boundary value problem on a graph %J Ufa mathematical journal %D 2015 %P 94-103 %V 7 %N 4 %U http://geodesic.mathdoc.fr/item/UFA_2015_7_4_a8/ %G en %F UFA_2015_7_4_a8