%0 Journal Article %A Yu. L. Sachkov %T Discrete symmetries in the generalized Dido problem %J Sbornik. Mathematics %D 2006 %P 235-257 %V 197 %N 2 %U http://geodesic.mathdoc.fr/item/SM_2006_197_2_a6/ %G en %F SM_2006_197_2_a6