WAN, Cheng-Syuan. Semi-Substructural Logics à la Lambek with Symmetry. Bulletin of the Section of Logic, Poland, v. 54, n. 4, p. 519–576, 2026. DOI: 10.18778/0138-0680.2025.17. Disponível em: https://www.czasopisma.uni.lodz.pl/bulletin/article/view/24426. Acesso em: 8 aug. 2026.