PACHECO, Hugo; CUNHA, Alcino; HU, Zhenjiang. Delta Lenses over Inductive Types. Electronic Communications of the EASST, [S. l.], v. 49, 2012. DOI: 10.14279/tuj.eceasst.49.713. Disponível em: https://www.eceasst.org/index.php/eceasst/article/view/1907. Acesso em: 18 sep. 2025.