A New Attributes-Priority Matching Watermarking Algorithm Satisfying Topological Conformance for Vector Map. - Dong Zhang; Depei Qian; Pen Han (IIH-MSP, 2007)

Spatial Map Data Share and Parallel Dissemination System Based on Distributed Network Services and Digital Watermark. - Dong Zhang; Depei Qian; Weiguo Wu; Ailong Liu; Xuewei Yang; Pen Han (NPC, 2007)