Plantae
Schreiber, K.-F., A. Yair, and M. Shachak. 1995. Ecological gradients along slopes of the northern Negev highlands, Israel. Pages 209-229 in H.-P. Blume, and S. M. Berkowicz, editors. Arid ecosystems. Advances in GeoEcology 28. Catena Verlag, Cremlingen, Germany.