Swanson, H. F.; Monge-Nájera, J. The Effects of Methodological Limitations in the Study of Butterfly Bebavior and Demography: a Daily Study of <i>Vanessa atalanta</i≫ (Lepidoptera: Nymphalidae) for 22 Years. Rev. Biol. Trop. 2000, 48, 605–614.