@article {KNZ00372, title = {Geographic information systems for modeling bison impact on Konza Prairie, Kansas}, journal = {GIS/LIS Proceedings}, volume = {2}, year = {1992}, pages = {618 -623}, keywords = {LTER-KNZ, Information Systems}, author = {Nellis, M.D. and J.D. Bathgate and J. M. Briggs} }