Doctoral Viva of my former PhD student Adriano Possebon (Julho-2018). L to R: Rafael Gabler (UNICAMP/UnB), Hector Ceniceros (UCSB-USA), FRC, Paulo Morais (IF-UnB). Lorena, Adriano Possebon, Adriano's Parents, Paulo Roberto Mendes (PUC-RJ).