Henzinger, M. H., Chang, B.-W., Milch, B., &; Brin, S. (2003). Query-free news search. In Proceedings of the 12th international conference on World Wide Web. Budapest, Hungary: Association for Computing Machinery.https://doi.org/10.1145/775152.775154 
LibreCat: https://research-explorer.ista.ac.at/record/11860
DOI: 10.1145/775152.775154