@article {KNZ00310, title = {Regional analysis of the central Great Plains}, journal = {BioScience}, volume = {41}, year = {1991}, pages = {685 -692}, keywords = {LTER-KNZ}, doi = {http://www.jstor.org/stable/1311763}, author = {Burke, I.C. and Kittel, T.G.F. and Lauenroth, W.K. and Snook, P. and Yonker, C.M. and Parton, W.J.} }