LIPPARINI, Paolo. Structures with Two Partial Orders and the Amalgamation Property. Bulletin of the Section of Logic, Poland, p. 27 pp., 2026. DOI: 10.18778/0138-0680.2026.17. Disponível em: https://www.czasopisma.uni.lodz.pl/bulletin/article/view/28876. Acesso em: 29 sep. 2026.