%0 Journal Article %A Tarama, Shigeo %T Lateral estimates for iterated elliptic operators and analyticity %J Electronic Journal of Differential Equations %D 2009 %V 2009 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a167/ %G en %F EJDE_2009__2009__a167