M. K.  Raynolds, Walker, D. A., and Maier, H. A., ?Plant community-level mapping of arctic Alaska based on the Circumpolar Arctic Vegetation Map?, Phytocoenologia, vol. 35, pp. 821-848, 2005.

U.  Schickhoff, Walker, M. D., and Walker, D. A., ?Riparian willow communities on the Arctic Slope of Alaska and their environmental relationships: A classification and ordination analysis?, Phytocoenologia, vol. 32, pp. 145-204, 2002.

A.  Kade, Walker, D. A., and Raynolds, M. K., ?Plant communities and soils in cryoturbated tundra along a bioclimate gradient in the Low Arctic, Alaska?, Phytocoenologia, vol. 35, pp. 761-820, 2005.