Alessandro Bozzon Francisco José Domínguez Mayo Joaquim Filipe Web Information Systems and Technologies - 15th International Conference, WEBIST 2019, Vienna, Austria, September 18-20, 2019, Revised Selected Papers WEBIST (Revised Selected Papers) Springer 2020 Lecture Notes in Business Information Processing 399 978-3-030-61749-3 978-3-030-61750-9 https://doi.org/10.1007/978-3-030-61750-9 db/conf/webist/webist2019sp.html