Multiplicity results for three-point boundary value problems with a non-well-ordered upper and lower solution condition. - Xu Xian; Donal O'Regan; Jingxian Sun 001 (Math. Comput. Model., 2007)

Building a Semantic Classification of Image Database from Patterns of Relevance Feedback. - Xiaohong Hu; Xu Xian; Yali Ji; Lei Shi 028; Qiang Wang (CSO (1), 2009)