Condition of Projectivity in the Underlying Dependency Structures Kateřina Veselá author Jiří Havelka author Eva Hajičová author 2004-aug 23–aug 27 text COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics COLING Geneva, Switzerland conference publication vesela-etal-2004-condition https://aclanthology.org/C04-1042/ 2004-aug 23–aug 27 289 295