Evaluating Parallel R-Tree Implementations on a Network of Workstations (Extended Abstract). - Ning An 001; Liujian Qian; Anand Sivasubramaniam; Tom Keefe (ACM-GIS, 1998)

Virtual Environments for Geographic Visualization: Potential and Challenges. - Alan M. MacEachren; Robert M. Edsall; Daniel Haug; Ryan Baxter; George Otto; Raymon Masters; Sven Fuhrmann; Liujian Qian (NPIVM@CIKM, 1999)

Storing spatial data on a network of workstations. - Ning An 001; R. Lu; Liujian Qian; Anand Sivasubramaniam; Tom Keefe (Clust. Comput., 1999)

A conceptual framework for incorporating cognitive principles into geographical database representation. - Jeremy L. Mennis; Donna J. Peuquet; Liujian Qian (Int. J. Geogr. Inf. Sci., 2000)