Wilfried Lepuschitz, Munir Merdan, Gottfried Koppensteiner, Richard Balogh, David Obdrzálek: Robotics in Education - Methods and Applications for Teaching and Learning, Proceedings of the 9th RiE 2018, Qawra, St. Paul's Bay, Malta, April 18-20, 2018. Advances in Intelligent Systems and Computing 829, Springer 2019, ISBN 978-3-319-97084-4