8[1]Yapa,Lakshman S.1991.Is GIS appropriate technology? International Journal of Geographical Information Systems,5(1):41～58
9[2]Webster,C.J.1993.GIS and the scentific inputs to urban planning.Part 1:description,Environment and Planning B:Planning and Design,20.709～728
10[3]Webster,C.J.1994.GIS and the scentific inputs to urban planning.Part 2:prediction and prescription,Environment and Planning B:Planning and Design,21.145～157
