TY  - RPRT
TI  - On the estimation of species richness based on the accumulation of previously unrecorded species
AU  - E. Cam
AU  - J.D. Nichols
AU  - J.R. Sauer
AU  - J.E. Hines
PY  - 2002
DO  - 10.1034/j.1600-0587.2002.250112.x
UR  - https://pubs.usgs.gov/publication/5224132
ID  - 5224132
ER  -