@article {SoSyM:AToM3CBD, title = {Meta-Modelling and Graph Grammars for Multi-Paradigm Modelling in {AToM$^3$}, journal = {Software and Systems Modeling (SoSyM)}, volume = {3}, number = {3}, year = {2004}, pages = {194{\textendash}209}, doi = {10.1007/s10270-003-0047-5} }