@TechReport{ mantel:developing-a-matrix-characterization-for-mell:1998, address = {Kaiserslautern Germany}, author = {Heiko Mantel}, institution = {DFKI}, number = {RR-98-03}, title = {{Developing a Matrix Characterization for MELL}}, url = {http://www.dfki.uni-kl.de/dfkidok/publications/RR/98/03/abstract.html}, year = 1998 }