@article{HemmerlingKniemeyerLanwertetal., author = {Hemmerling, Reinhard and Kniemeyer, Ole and Lanwert, Dirk and Kurth, Winfried and Buck-Sorlin, Gerhard H.}, title = {The rule-based language XL and the modelling environment GroIMP illustrated with simulated tree competition}, language = {en} }