M. Machado, L. Salerno, S. Marczak, and R. Bastos. "Assessment Models for Evaluating the Combined use of Agile, User-Centered Design and Lean Startup in the Context of Software Development: A Grey Literature Review", in Anais do XIX Simpósio Brasileiro de Qualidade de Software, São Luiz do Maranhão, 2020, pp. 81-90.