2005

Henzinger, M.R. ; Chang, B.W. ; Milch, B. ; Brin, S.: Query-free news search. In: World Wide Web:Internet and Web Information Systems (2005), Nr. 8, S. 101-126

2003

Curtiss, M. ; Bharat, K. ; Schmitt, M.: Systems and methods for improving the ranking of news articles, 2003. - patent no. US 2005/0060312 A1