@TechReport{ Knapek:2002, author = {S. Knapek}, title = {Compression of anisotropic tensor--product discretizations}, institution = {Institut f\"ur Numerische Simulation, Universit\"at Bonn}, year = {2002}, annote = {unrefereed}, inspreprintnum= {0200}, number = 0200, type = {{INS Preprint}}, pdf = {http://wissrech.ins.uni-bonn.de/research/pub/knapek/compression.pdf} }