@TECHREPORT{CsuDasHol_j2004_a, author = {Erzs\'ebet~Csuhaj-Varj\'u and J{\"u}rgen~Dassow and Markus~Holzer}, title = {{On A Competence-based Cooperation Strategy in CD Grammar Systems}}, institution = {MTA SZTAKI Budapest}, year = 2004, number = {2004/3}, url = {http://theo.cs.uni-magdeburg.de/pubs/papers/csudashol04a.pdf} }