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@inbook{borchers2004,
  author  = {Borchers, D.L. and Burnham, K.P.},
  title   = {Advanced distance sampling: estimating abundance of biological population},
  chapter = {General formulation for distance sampling},
  pages   = {10-11},
  year    = {2004},
  publisher = {Oxford University Press}
}

@article{borchers2006,
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  journal={Biometrics},
  volumn={62},
  pages={372-378},
  year={2006},
}

@book{buckland2001,
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  year={2001},
  publisher={Oxford university press}
}

@article{fewster2009,
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  journal={Biometrics},
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  number={1},
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  year={2009},
  publisher={Oxford University Press}
}

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@incollection{laake1999,
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@inbook{laake2004,
  author  = {Laake, J.L. and Borchers, D.L.},
  title   = {Advanced distance sampling: estimating abundance of biological population},
  chapter = {Methods for incomplete detection at distance zero},
  year    = {2004},
  publisher = {Oxford University Press}
}

@inbook{marques2004,
  author  = {Marques, F. F. C. and Buckland, S. T.},
  title   = {Advanced distance sampling},
  chapter = {Covariate models for the detection function},
  pages   = {31-47},
  year    = {2004},
  publisher = {Oxford University Press}
}


