(en) Ceríaco, Luis Miguel Pires et al., «A dwarf among giants: phylogenetic position of the elusive Angolan Adder (Bitis heraldica) and biogeographic affinities of Angolan Afromontane regions», African Journal of Herpetology, , p.1–11 (ISSN2156-4574, DOI10.1080/21564574.2020.1782484, lire en ligne).
(en) Axel Barlow et al., «Ancient habitat shifts and organismal diversification are decoupled in the African viper genus Bitis (Serpentes: Viperidae)», Journal of Biogeography, John Wiley & Sons, Ltd, vol.46, no6, , p.1234–1248 (ISSN0305-0270, DOI10.1111/jbi.13578, lire en ligne, consulté le ).
(en) Ceríaco, Luis Miguel Pires et al., «A dwarf among giants: phylogenetic position of the elusive Angolan Adder (Bitis heraldica) and biogeographic affinities of Angolan Afromontane regions», African Journal of Herpetology, , p.1–11 (ISSN2156-4574, DOI10.1080/21564574.2020.1782484, lire en ligne).
(en) Axel Barlow et al., «Ancient habitat shifts and organismal diversification are decoupled in the African viper genus Bitis (Serpentes: Viperidae)», Journal of Biogeography, John Wiley & Sons, Ltd, vol.46, no6, , p.1234–1248 (ISSN0305-0270, DOI10.1111/jbi.13578, lire en ligne, consulté le ).
(en) Ceríaco, Luis Miguel Pires et al., «A dwarf among giants: phylogenetic position of the elusive Angolan Adder (Bitis heraldica) and biogeographic affinities of Angolan Afromontane regions», African Journal of Herpetology, , p.1–11 (ISSN2156-4574, DOI10.1080/21564574.2020.1782484, lire en ligne).
(en) Axel Barlow et al., «Ancient habitat shifts and organismal diversification are decoupled in the African viper genus Bitis (Serpentes: Viperidae)», Journal of Biogeography, John Wiley & Sons, Ltd, vol.46, no6, , p.1234–1248 (ISSN0305-0270, DOI10.1111/jbi.13578, lire en ligne, consulté le ).