author = { Bebendorf, Mario AND Hackbusch, Wolfgang },

title = { Existence of H-matrix approximants to the inverse FE-matrix of elliptic operators with L-coefficients },

publisher = {Max-Planck-Institut für Mathematik in den Naturwissenschaften},

year = {2002},

booktitle = {Preprint / Max-Planck-Institut für Mathematik in den Naturwissenschaften Leipzig ; 2002,21},

address = { Leipzig },

url = { http://slubdd.de/katalog?TN_libero_mab2 }