Michal Moskal Jakub Lopuszanski Joseph R. Kiniry E-matching for Fun and Profit. 19-35 2008 198 Electr. Notes Theor. Comput. Sci. 2 http://dx.doi.org/10.1016/j.entcs.2008.04.078 db/journals/entcs/entcs198.html#MoskalLK08