%0 Journal Article %A Graczykowski, Cezary %A LewiƄski, Tomasz %T The lightest plane structures of a bounded stress level transmitting a point load to a circular support %J Control and Cybernetics %D 2005 %P 227-253 %V 34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CC_2005_34_1_a11/ %G en %F CC_2005_34_1_a11