@misc{indiciaedd0e99aa021b,
  title = {On the estimation of species richness based on the accumulation of previously unrecorded species},
  author = {E. Cam and J.D. Nichols and J.R. Sauer and J.E. Hines},
  year = {2002},
  doi = {10.1034/j.1600-0587.2002.250112.x},
  url = {https://pubs.usgs.gov/publication/5224132},
  note = {Source identifier: 5224132}
}