Biblio
“Natural and land-use history of the Northwest mountain ecoregions (USA) in relation to patterns of plant invasions”, Perspectives in Plant Ecology, Evolution and Systematics, vol. 7, pp. 137–158, 2005.
, “Age structure and age-related performance of sulfur cinquefoil (Potentilla recta)”, Weed Science, vol. 54, pp. 87–93, 2006.
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