%0 Journal Article %A V. V. Shcherbakov %A O. I. Krivorot'ko %T Optimal shapes of cracks in a viscoelastic body %J Trudy Instituta matematiki i mehaniki %D 2015 %P 294-304 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2015_21_1_a28/ %G ru %F TIMM_2015_21_1_a28