- Manuel F. Silva, José Luís Lima, Luís Paulo Reis, Alberto Sanfeliu, Danilo Tardioli, editors, Robot 2019: Fourth Iberian Robotics Conference - Advances in Robotics, Volume 1, Porto, Portugal, 20-22 November, 2019. Volume 1092 of Advances in Intelligent Systems and Computing, Springer, 2020.
- Manuel F. Silva, José Luís Lima, Luís Paulo Reis, Alberto Sanfeliu, Danilo Tardioli, editors, Robot 2019: Fourth Iberian Robotics Conference - Advances in Robotics, Volume 2, Porto, Portugal, 20-22 November, 2019. Volume 1093 of Advances in Intelligent Systems and Computing, Springer, 2020.