@Technical Report{ steels:05c, address = {Berlin, Germany},author = {De Beule, Joachim and Steels, Luc},booktitle = {Proceedings of the 28th Annual German Conference on Artificial Intelligence},editor = {Furbach, U.},note = {Language},pages = {1-15},publisher = {Springer Verlag},series = {Lecture Notes in Artificial Intelligence},title = {Hierarchy in Fluid Construction Grammar},type = {Technical Report},volume = {3698},year = {2005},}