LOAN, N. T. H.; HA, N. H. Orbital Oscillator Commutation Relations and Mass Shifting for Superstring. Communications in Physics, [S. l.], v. 19, n. 4, 2009. DOI: 10.15625/0868-3166/19/4/6405. Disponível em: https://vjs.ac.vn/index.php/cip/article/view/6405. Acesso em: 27 apr. 2024.