ÉSIK, Z.; LARSEN, K. G. Regular Languages Definable by Lindström Quantifiers. BRICS Report Series, [S. l.], v. 10, n. 28, 2003. DOI: 10.7146/brics.v10i28.21796. Disponível em: https://tidsskrift.dk/brics/article/view/21796. Acesso em: 19 apr. 2024.