FIKÁČEK, M.; HEBAUER, F.; HANSEN, M. Taxonomic revision of New World species of the genus Oosternum Sharp (Coleoptera: Hydrophilidae: Sphaeridiinae) I. Definition of species groups and revision of the Oosternum aequinoctiale group. Zootaxa, Auckland, New Zealand, v. 2054, n. 1, p. 1–37, 2009. DOI: 10.11646/zootaxa.2054.1.1. Disponível em: https://mapress.com/zt/article/view/zootaxa.2054.1.1. Acesso em: 20 apr. 2025.