@Article{higham80,
  author = 	 {Higham, C.F.W and Kijngam, A. and Manly, B.F.J.},
  title = 	 {An analysis of prehistoric canid remains from {T}hailand},
  journal = 	 {Journal of Archaeological Science},
  year = 	 {1980},
  volume = 	 {7},
  pages = 	 {149--165}
}

@Book{manly07,
  author = 	 {Manly, B.F.J.},
  title = 	 {Randomization, bootstrap and Monte Carlo methods in biology},
  publisher = 	 {Chapman \& Hall/CRC},
  year = 	 {2007},
  address = 	 {Boca Raton},
  edition = 	 {3rd}
}

@Manual{canoco5manual,
  title = 	 {Canoco Reference Manual and User's Guide: Software for Ordination (Version 5.0)},
  author = 	 {ter Braak, C.J.F. and \v{S}milauer, P.},
  organization = {Microcomputer Power},
  Taddress = 	 {Ithaca, NY, USA},
  year = 	 {2012}
}

@Manual{vegan,
  title = {vegan: Community Ecology Package},
  author = {Jari Oksanen and F. Guillaume Blanchet and Roeland Kindt and Pierre Legendre and Peter R. Minchin and R. B. O'Hara and Gavin L. Simpson and Peter Solymos and M. Henry H. Stevens and Helene Wagner},
  year = {2013},
  note = {R package version 2.1-33},
  url = {http://vegan.r-forge.r-project.org/}
}

@Manual{canoco31,
  title = 	 {Update notes: CANOCO version 3.1},
  author = 	 {ter Braak, C.J.F.},
  organization = {Wageningen: Agricultural Mathematics Group},
  year = 	 {1990}
}

@Article{besagclifford,
  author = 	 {Besag, J. and Clifford, P.},
  title = 	 {Generalized Monte Carlo significance tests},
  journal = 	 {Biometrika},
  year = 	 {1989},
  volume = 	 {76},
  number = 	 {4},
  pages = 	 {633--642}
}

