UNDERHILL, L. G.; OSCHADLEUS, H. D.; BROOKS, M.; NAVARRO, R. A.; KUYPER, S. A celebration of long-term involvement in citizen science: the Animal Demography Unit’s Biodiversity Observer awards. Biodiversity Observations, [S. l.], v. 7, p. 1–9, 2016. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/378. Acesso em: 21 may. 2022.