共 13 条
- [1] ALDSTADT J, POINT PATTERN ANAL A
- [2] An X., 1995, ENV EUGENICS
- [3] [Anonymous], 1990, MMWR Recomm Rep, V39, P1
- [8] Haining R., 2003, SPATIAL DATA ANAL TH
- [9] *I SOIL RES, 1978, CAS SOIL TYP DISTR C
- [10] MENG L, 2002, GEOGRAPHY TERRITORIA, V18, P98