D. M.  Stoms, Davis, F. W., and Hollander, A. D., ?Hierarchical representation of species distributions for biological survey and monitoring?, in GIS and Environmental Modeling: Progress and Research Issues, M. F.  Goodchild, Steyaert, L. T., and Parks, B. O., Eds. Fort Collins, Colorado: GIS World Books, 1996, pp. 445-449.

D. M.  Stoms, Davis, F. W., and Hollander, A. D., ?Hierarchical representation of species distributions for biological survey and monitoring?, in GIS and Environmental Modeling: Progress and Research Issues, M. F.  Goodchild, Steyaert, L. T., and Parks, B. O., Eds. Fort Collins, Colorado: GIS World Books, 1996, pp. 445-449.

F. W.  Davis and Simonett, D. S., ?GIS and remote sensing?, in Geographical Information Systems: Principles and Applications, vol. 1, D. J.  Maguire, Goodchild, M. F., and Rhind, D. W., Eds. London: Longman Scientific & Technical, 1991, pp. 191-213.

F. W.  Davis and Simonett, D. S., ?GIS and remote sensing?, in Geographical Information Systems: Principles and Applications, vol. 1, D. J.  Maguire, Goodchild, M. F., and Rhind, D. W., Eds. London: Longman Scientific & Technical, 1991, pp. 191-213.

M. F.  Goodchild, Davis, F. W., Painho, M., and Stoms, D. M., ?The Use of Vegetation Maps and Geographic Information Systems for Assessing Conifer Lands in California?, NCGIA, Santa Barbara, 1991.

M. F.  Goodchild, Davis, F. W., Painho, M., and Stoms, D. M., ?The Use of Vegetation Maps and Geographic Information Systems for Assessing Conifer Lands in California?. NCGIA, 1991.