Daniela Fogli, Daniel Tetteroo, Barbara Rita Barricelli, Simone Borsci, Panos Markopoulos, George A. Papadopoulos: End-User Development - 8th International Symposium, IS-EUD 2021, Virtual Event, July 6-8, 2021, Proceedings. Lecture Notes in Computer Science 12724, Springer 2021, ISBN 978-3-030-79839-0