Paper  bibtex   

@ARTICLE{Neff1968,
  author = {Don J. Neff},
  title = {The Pellet-Group Count Technique for Big Game Trend, Census, and
	Distribution: A Review},
  journal = {The Journal of Wildlife Management},
  year = {1968},
  volume = {32},
  pages = {597--614},
  number = {3},
  file = {:Neff1968.pdf:PDF},
  owner = {Tiago},
  timestamp = {2010.04.05},
  url = {http://www.jstor.org/stable/3798941}
}