1. Ding, X. L., Y. Q. Chen, D. F. Huang, J. J. Zhu, M. Tsakiri, and M. Stewart, Slope Monitoring Using GPS: A Multi-antenna Approach, GPS World, 52–55, March, 2000.
2. Forward, T., Implementation Issues of an Integrated Satellite-Based Monitoring System for Open-pit Mine Walls, The 6th South East Asian Surveyors’ Congress, Fremantle, Australia, November, 1999.
3. Goad, C., Surveying with the Global Positioning System, Chapter 18 in Global positioning system: Theory and application, Parkinson et al., American Institute of Aeronautics and Astronautics, Washington, DC, 1996.
4. Petrovski, I., S. Kawaguchi, H. Torimoto, M. Asako, T. Chachin, and K. Okano, LAMOS-BOHSAI: Landslide monitoring system based on high-speed sequential analysis for inclination, ION-GPS 2000, 84–94, 2000.
5. He, X., X. Ding, Y. Sun, Y. Chen, J. Liu, D. Huang, and J. Zhu, GPS Multiantenna switch, China Patent 00219891.6, 2002.