GENGRONG ZHANG, JIANKANG CHENG, XIAOTING LI. SOME RESULTS OF ALTERNATING SYSTEMS. International Journal of Research Science and Management, [S. l.], v. 2, n. 1, p. 26–31, 2015. Disponível em: http://ijrsm.com/index.php/journal-ijrsm/article/view/591. Acesso em: 23 dec. 2024.