Utilizing Spatio-temporal Data Index for Location Privacy Protection. - Tran Khanh Dang; Van Nghiem Nguyen; Dinh Long Vu; Josef Küng (DEXA Workshops, 2013)

BdHCO-tree: integrating location privacy protection algorithms for frequent updates of moving objects. - Tran Khanh Dang; Dinh Long Vu; Van Nghiem Nguyen (ICUIMC, 2014)