%0 Journal Article %A Niculae Mandache %T On a counterexample concerning unique continuation for elliptic equations in divergence form %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 1996 %P 308-331 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JMAG_1996_3_a6/ %G en %F JMAG_1996_3_a6