Andreas Holzinger, Alan Pope, Hugo Plácido da Silva: Physiological Computing Systems - International Conferences, PhyCS 2016, Lisbon, Portugal, July 27-28, 2016, PhyCS 2017, Madrid, Spain, July 27-28, 2017, PhyCS 2018, Seville, Spain, September 19-21, 2018, Revised and Extended Selected Papers. Lecture Notes in Computer Science 10057, Springer 2019, ISBN 978-3-030-27949-3