%0 Journal Article %A Apel, Thomas %A Sirch, Dieter %T $L^2$-error estimates for Dirichlet and Neumann problems on anisotropic finite element meshes %J Applications of Mathematics %D 2011 %P 177-206 %V 56 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10492-011-0002-7/ %R 10.1007/s10492-011-0002-7 %G en %F 10_1007_s10492_011_0002_7