- Dagmar Gromann, Gilles Sérasset, Thierry Declerck, John P. McCrae, Jorge Gracia, Julia Bosque-Gil, Fernando Bobillo, Barbara Heinisch, editors, 3rd Conference on Language, Data and Knowledge, LDK 2021, September 1-3, 2021, Zaragoza, Spain. Volume 93 of OASIcs, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021.