TY  - RPRT
TI  - A field comparison of nested grid and trapping web density estimators
AU  - David A. Jett
AU  - J.D. Nichols
PY  - 1987
DO  - 10.2307/1381576
UR  - https://pubs.usgs.gov/publication/5221544
ID  - 5221544
ER  -