FLICK, Nils Erik. Derivation Languages of Graph Grammars. Electronic Communications of the EASST, [S. l.], v. 61, 2013. DOI: 10.14279/tuj.eceasst.61.829. Disponível em: https://www.eceasst.org/index.php/eceasst/article/view/2045. Acesso em: 26 aug. 2025.