Hanns-Martin Teichert. On the Cartesian Sum of Undirected Graphs. Elektronische Informationsverarbeitung und Kybernetik, 18(12):639-646, 1982.
@article{Teichert82a, title = {On the Cartesian Sum of Undirected Graphs}, author = {Hanns-Martin Teichert}, year = {1982}, tags = {graph-rewriting, rewriting}, researchr = {https://researchr.org/publication/Teichert82a}, cites = {0}, citedby = {0}, journal = {Elektronische Informationsverarbeitung und Kybernetik}, volume = {18}, number = {12}, pages = {639-646}, }