BÌNH, N. T. General diagram and relation of general diagram with phrase-structure grammar. Journal of Computer Science and Cybernetics, [S. l.], v. 21, n. 4, p. 301–311, 2012. DOI: 10.15625/1813-9663/21/4/1434. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/1434. Acesso em: 8 may. 2024.