Jean-Luc Rullière, Stéphan Thomassé. Countable alpha-extendable graphs. Discrete Mathematics, 239(1-3):53-67, 2001. [doi]
@article{RulliereT01, title = {Countable alpha-extendable graphs}, author = {Jean-Luc Rullière and Stéphan Thomassé}, year = {2001}, doi = {10.1016/S0012-365X(00)00374-5}, url = {http://dx.doi.org/10.1016/S0012-365X(00)00374-5}, tags = {graph-rewriting, rewriting}, researchr = {https://researchr.org/publication/RulliereT01}, cites = {0}, citedby = {0}, journal = {Discrete Mathematics}, volume = {239}, number = {1-3}, pages = {53-67}, }