TY  - RPRT
TI  - Monitoring multiple species: Estimating state variables and exploring the efficacy of a monitoring program
AU  - S.D. Mattfeldt
AU  - L.L. Bailey
AU  - E.H.C. Grant
PY  - 2009
DO  - 10.1016/j.biocon.2008.12.002
UR  - https://pubs.usgs.gov/publication/5224935
ID  - 5224935
ER  -