@misc{indiciae89c8be6f6ed1,
  title = {A Fourier Series estimator of population density for line transect sampling},
  author = {B.R. Crain and K.P. Burnham and David R. Anderson and J.L. Laake},
  year = {1978},
  url = {https://pubs.usgs.gov/publication/70119861},
  note = {Source identifier: 70119861}
}