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].