Xie, Wei (P.REPUBLIC OF CHINA) 
Using GIS Technology for Railway Design and Management 
Xu, Yonglong (GERMANY) 
The European Digital Road Map Multimap and its Applications 
Yeu, Bock-Mo (KOREA SOUTH) 
Application of Expert System and Image Processing Techniques for Detecting 
Building Changes in Geo-Spatial Databases 
Yoshimura, Mitsunori (JAPAN) 
Land Use Change Analyis Using Regional Numerical Land Information 
Yu, Xiaowei (FINLAND) 
Updating the Topographic Map in Southern China by using Satellite Image and 
Ancillary Data 
Zhou, Yingchun (UNITED STATES) 
An Ecological Regionalization Model Based on NOAA/AVHRR Data and Ancillary Data 
Zhu, Qing (P.REPUBLIC OF CHINA) 
Fractal-Based Analysis and Realistic Display - The Theory and Application to DTM 
Zuber, Maria (UNITED STATES) 
Topographic Mapping of the Moon 
Appendix 
Colour Pages 
Authors and Coauthors Index - ISPRS Commission IV 
Keywords Index - Volume XXXI, Part B4 - ISPRS Commission IV 
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