Hartrumpf, Sven«Question Answering using Sentence Parsing and Semantic Network Matching»(pdf)(en anglès).Multilingual Information Access for Text, Speech and Images: 5th Workshop of the Cross-Language Evaluation Forum, CLEF 2004, Bath, UK, September 15-17, 2004, Revised Selected Papers 5,2004[Consulta: 5 febrer 2023].