1. Agostinelli C Lund U 2013 R Package 'Circular': Circular Statistics (Version 0.4-7) https://r-forge.r-project.org/projects/circular/
2. El ciclo de vida de Paragymnetis flavomarginata sallei Schaum, 1849 (Coleoptera: Melolonthidae: Cetoniinae), con observaciones sobre su biologia;Arce-Perez;Folia Entomologica Mexicana,1999
3. Segunda relação das pragas das plantas cultivadas no Rio Grande do Sul;Bertels;Pesquisa Agropecuária Brasileira,1966
4. A new subspecies of Inca clathrata (Olivier) from Trinidad, West Indies, and range extensions for Inca clathrata sommeri Westwood (Coleoptera: Scarabaeidae: Trichiinae);Boos;The Coleopterists Bulletin,1985
5. Identification of ecological indicators for monitoring ecossystem health in the trans-boundary W Regional park: a pilot study;Bouyer;Biological Conservation,2007