K. Gama, A. da Costa, H. Coelho, R. Venieris, and C. de Lucena. "Experimenting with the Peanut Butter and Jelly Sandwich Challenge to Introduce Algorithmic Thinking and Test Case Writing", in Anais Estendidos do XXXIII SimpĆ³sio Brasileiro de Engenharia de Software, Salvador, 2020.