@inproceedings{muller-2004-semi, title = "Semi-Automatic Construction of a Question Treebank", author = {M{\"u}ller, Karin}, editor = "Lino, Maria Teresa and Xavier, Maria Francisca and Ferreira, F{\'a}tima and Costa, Rute and Silva, Raquel", booktitle = "Proceedings of the Fourth International Conference on Language Resources and Evaluation ({LREC}`04)", month = may, year = "2004", address = "Lisbon, Portugal", publisher = "European Language Resources Association (ELRA)", url = "https://aclanthology.org/L04-1433/" }