1. Bailey HP. 1979. Semi-arid climates: their definition and distribution. In: Hall AE, Cannell GH, Lawton HW, Eds. Agriculture in semiarid environments. Ecological studies 34, Berlin: Springer, pp 73–97
2. Branson FA, Gifford GF, Renard KG, Hadley RF. 1981. Rangeland hydrology. Toronto: Kendall/Hunt Publishing Co., 340 p
3. Burke IC, Lauenroth WK, Parton WJ. 1997. Regional and temporal variation in aboveground net primary production and net nitrogen mineralization in grasslands. Ecology 78:1330–40
4. Canham CD, Cole JJ, Lauenroth WK, Eds. 2003. Models in ecosystem science. Princeton (NJ): Princeton University Press. 476 p
5. Coffin DP, Lauenroth WK, Burke IC. 1993. Spatial dynamics in the recovery of shortgrass steppe ecosystems. In: Gardner R, Ed. Spatial processes in ecological systems. Providence: American Mathematical Society, pp 75–108