H. Drias. Proceedings of the 2011 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Volume 01, Seite 36--39. Washington, DC, USA, IEEE Computer Society, (2011)
G. Mishne, und M. de Rijke. Proceedings ot the 7th International Conference on Computer-Assisted Information Retrieval (Recherche d'Information et ses Applications) - RIAO 2004, Seite 539--554. CID, (April 2004)
J. Puzicha, T. Hofmann, und J. Buhmann. Computer Vision and Pattern Recognition, 1997. Proceedings., 1997
IEEE Computer Society Conf. on, Seite 267--272. (1997)
H. Schütze, und J. Pedersen. Proceedings of the 4th Annual Symposium on Document Analysis and Information Retrieval, Seite 161--175. Las Vegas, USA, (1995)