Formal Grammar: 20th and 21st International Conferences, FG 2015, Barcelona, Spain, August 2015, Revised Selected Papers. FG 2016, Bozen, Italy, August 2016, Proceedings

Formal Grammar: 17th and 18th International Conferences, FG 2012 Opole, Poland, August 2012, Revised Selected PapersFG 2013 Düsseldorf, Germany, August 2013, Proceedings

Logical Aspects of Computational Linguistics: 4th International Conference, LACL 2001, Le Croisic, France, June 27-29, 2001, Proceedings