@Article{Tru_j2008, author = {Bianca~Truthe}, title = {Remarks on Context-Free Parallel Communicating Grammar Systems Generating Crossed Agreements}, journal = ijfcs, year = {2008}, volume = {19}, number = {4}, pages = {873--886}, url = {http://dx.doi.org/10.1142/S0129054108006017} }