TRUONG, Tran Nguyen. Bethe-Schwinger Effective Range Theory and Lehmann and Weinberg Chiral Perturbation Theories. <b>Communications in Physics</b>, <i>[S. l.]</i>, v. 20, n. 4, p. 325, 2012. DOI: 10.15625/0868-3166/20/4/2529. Disponível em: https://vjs.ac.vn/cip/article/view/2529. Acesso em: 2 jan. 2026.