8KEIJI Y.GIS and quantitative geography[J].GeoJournal,2001,52(3):173-180.
9YEW Y,RICHARD M S,FREDRICK L W.Remodeling census population with spatial information from Landsat TM imagery[J].Computer,Environment and Urban System,1997,21(3/4):245-258.
10CLARK C.Urban population densities[J].Journal of the Royal Statistical Society,1951,11(4),490-496.