NASA - National Aeronautics and Space Administration

Perry, J. N., A. M. Liebhold, M. S. Rosenberg, J. L. Dungan, M. Miriti, A. Jakomulska, and S. Citron-Pousty (2002), Illustrations and guidelines for selecting statistical methods for quantifying spatial pattern in ecological data, Ecography, 25, 578-600.