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Gross, Briana L., Nolan C. Kane, Christian Lexer, Fulco Ludwig, David M. Rosenthal, Lisa A. Donovan, και Loren H. Rieseberg. Reconstructing the Origin of Helianthus Deserticola: Survival and Selection On the Desert Floor. 2004.

Gross, Briana L., et al. Reconstructing the Origin of Helianthus Deserticola: Survival and Selection On the Desert Floor. 2004.