High-precision electronic map of Jinan City and telecommunications graphical machine-line resources management system based on DPS and 3S technology. - Yizhong Gu; Debao Wang; Dong Yang (Geoinformatics, 2010)

1: 10000 Scale urban navigation electronic map production based on provincial foundation surveying and mapping 3D products. - Debao Wang; Yizhong Gu; Dong Yang (Geoinformatics, 2010)