Roth G.A., Whitford WG, Steinberger Y.  2009.  Small mammal herbivory: Feedbacks that help maintain desertified ecosystems. Journal of Arid Environments. 73:62-65.

Roth G.A., Whitford WG, Steinberger Y.  2007.  Jackrabbit (Lepus californicus) herbivory changes dominance in desertified Chihuahuan Desert ecosystems.. Journal of Arid Environments. 70:418-426.