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Rayna C.R.C.BellRayna C.R.C., A New Species of Hyperolius (Amphibia: Hyperoliidae) from Príncipe Island, Democratic Republic of São Tomé and Príncipe, „Herpetologica”, 72 (4), 2016, s. 343–351, ISSN0018-0831, JSTOR: 26428710 [dostęp 2021-07-21].