TY  - RPRT
TI  - A double-observer approach for estimating detection probability and abundance from point counts
AU  - J.D. Nichols
AU  - J.E. Hines
AU  - J.R. Sauer
AU  - F.W. Fallon
AU  - J.E. Fallon
AU  - P.J. Heglund
PY  - 2000
DO  - 10.1093/auk/117.2.393
UR  - https://pubs.usgs.gov/publication/5223914
ID  - 5223914
ER  -