FREIRE, Emmanuel Sávio Silva. Extension of the Use Case Diagram Metamodel for Requirement Modeling in Normative Multi-Agent System Projects. In: WORKSHOP-SCHOOL ON AGENTS, ENVIRONMENTS, AND APPLICATIONS (WESAAC), 11. , 2017, São Paulo/SP. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2017 . p. 137-148. ISSN 2326-5434. DOI: https://doi.org/10.5753/wesaac.2017.33235.