TY  - RPRT
TI  - Estimating the theoretical semivariogram from finite numbers of measurements
AU  - Li Zheng
AU  - Stephen E. Silliman
PY  - 2000
DO  - 10.1029/1999wr900270
UR  - https://pubs.usgs.gov/publication/70023126
ID  - 70023126
ER  -