ENGELBRECHT, D. How the east was won: breeding range extension of the Grey-backed Sparrow-lark Eremopterix verticalis. Biodiversity Observations, [S. l.], v. 8, p. 34: 1 – 4, 2017. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/455. Acesso em: 4 jul. 2022.