Funk, D.J.; Bernays, E.A. 2001. Geographic variation in host specificity reveals host range evolution in Uroleucon ambrosiae aphids. Ecology. 82(3): 726-739.

Funk, D.J.; Bernays, E.A. 2001. Geographic variation in host specificity reveals host range evolution in Uroleucon ambrosiae aphids. Ecology. 82(3): 726-739.