R. P.  Seifert and Seifert, F. Hammett, ?A community matrix analysis of Heliconia insect communities?, The American Naturalist, vol. 110, pp. 461-483, 1976.

R. P.  Seifert and Seifer, F. Hammett, ?Natural history of insects living in inflorescences of two species of Heliconia?, Journal of the New York Entomological Society, vol. 84, pp. 233-242, 1976.

R. P.  Seifert, ?Principal Components Analysis of biogeographic patterns among Heliconia insect communities?, Journal of the New York Entomological Society, vol. 89, pp. 109-122, 1981.

R. P.  Seifert and Seifert, F. Hammett, ?A Heliconia insect community in a Venezuelan Cloud Forest?, Ecology, vol. 60, pp. 462-467, 1979.