D. A.  Walker, Raynolds, M. K., Maier, H. A., Barbour, E. M., and Neufeld, G. P., ?Circumpolar geobotanical mapping: a web-based plant-to-planet approach for vegetation-change analysis in the Arctic?, Viten, vol. 1, pp. 125-128, 2010.

U. S.  Bhatt, Walker, D. A., Raynolds, M. K., Comiso, J. C., Epstein, H. E., Jia, G., Gens, R., Pinzon, J. E., Tucker, C. J., and Tweedie, C. E., ?Circumpolar Arctic tundra vegetation change is linked to sea-ice decline?, Earth Interactions, vol. 14, pp. 1-20, 2010.