%0 Journal Article %A M. V. Jalalova %A S. V. Leonov %T Effect of structural permeability on the stability of a parachute with four suspension lines %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2013 %P 65-68 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2013_1_a13/ %G ru %F VMUMM_2013_1_a13