JONES, N. D.; SKYUM, S. Complexity of Some Problems Concerning Lindenmayer Systems. (Revised version). DAIMI Report Series, [S. l.], v. 7, n. 85, 1979. DOI: 10.7146/dpb.v7i85.6501. Disponível em: https://tidsskrift.dk/daimipb/article/view/6501. Acesso em: 8 may. 2024.