Formal Grammar 22nd International Conference, FG 2017, Toulouse, France, July 22-23, 2017, Revised Selected Papers - Foret, Annie; Foret, Annie; Muskens, Reinhard; Muskens, Reinhard; Pogodalla, Sylvain; Pogodalla, Sylvain (Springer Berlin Heidelberg : Imprint: Springer, 2018)