Talking robots with Lego MindStorms Alexander Koller author Geert-Jan Kruijff author 2004-aug 23–aug 27 text COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics COLING Geneva, Switzerland conference publication koller-kruijff-2004-talking https://aclanthology.org/C04-1049/ 2004-aug 23–aug 27 336 342