@TechReport{CKPS00,
author = {Cockburn, Bernardo and Kanschat, Guido and Perugia, Ilaria and
Schötzau, Dominik},
title = {Superconvergence of the Local Discontinuous Galerkin
Method for Elliptic Problems on Cartesian Grids},
institution = UMSI,
year = 2000,
number = {2000/71}
}