1. Dragonflies of Texas: A Field Guide;ABBOTT J.C.,2015
2. Köppen’s climate classification map for Brazil;ALVARES C.A.;Meteorol. Zeitschrift,2013
3. A revision of the New World genus Progomphus Selys, 1854 (Anisoptera: Gomphidae);BELLE J.;Odonatologica,1973
4. A review of the genus ZonophoraSelys (Odonata, Gomphidae);BELLE J.;Tijdschr. voor Entomol.,1983
5. A synopsis of the South American species of Phyllogomphoides, with a key and descriptions of three new taxa (Odonata, Gomphidae);BELLE J.;Tijdschr. voor Entomol.,1984