A. D.  Hollander, Davis, F. W., and Stoms, D. M., ?Hierarchical representation of species distributions using maps, images, and sighting data?, in Mapping the Diversity of Nature, R. I.  Miller, Ed. London: Chapman and Hall, 1994, pp. 71-88.

A. D.  Hollander, Davis, F. W., and Stoms, D. M., ?Hierarchical representation of species distributions using maps, images, and sighting data?, in Mapping the Diversity of Nature, R. I.  Miller, Ed. London: Chapman and Hall, 1994, pp. 71-88.