JOURNAL OF SYSTEMS AND SOFTWARE, vol. 79, no. 2, page. 180 - 190, 2006-02
Proc. the 9th ACM Int'l Conf. on Information and Knowledge Management, page. 94 - 101, 2000-11
COMPUTER SYSTEMS SCIENCE AND ENGINEERING, vol. 21, no. 6, page. 395 - 404, 2006-11
Proceedings - International Conference on Data Engineering, page. 1104 - 1105, 2005-04
VLDB JOURNAL, vol. 19, no. 4, page. 503 - 529, 2010-08
VLDB JOURNAL, vol. 16, no. 3, page. 371 - 387, 2007-07
GEOINFORMATICA, vol. 14, no. 4, page. 425 - 446, 2010-10
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING, vol. 18, no. 2, page. 245 - 260, 2006-02
COMPUTER SYSTEMS SCIENCE AND ENGINEERING, vol. 19, no. 6, page. 355 - 362, 2004-11
INFORMATION SCIENCES, vol. 180, no. 21, page. 4118 - 4135, 2010-11-01
WORLD WIDE WEB-INTERNET AND WEB INFORMATION SYSTEMS, vol. 13, no. 3, page. 343 - 371, 2010-09