%0 Journal Article %A A. I. Aptekarev %A Yu. G. Rykov %T Variational principle for multidimensional conservation laws and pressureless media %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2019 %P 1117-1119 %V 74 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2019_74_6_a3/ %G en %F RM_2019_74_6_a3