(en) Rheindt, F.E. & Austin, Jeremy J. 2005. Major analytical and conceptual shortcomings in a recent taxonomic revision of the Procellariiformes – A reply to Penhallurick and Wink (2004). Emu 105(2): 181-186. PDF full text. Gearchiveerd op 9 maart 2021.
(en) Rheindt, F.E. & Austin, Jeremy J. 2005. Major analytical and conceptual shortcomings in a recent taxonomic revision of the Procellariiformes – A reply to Penhallurick and Wink (2004). Emu 105(2): 181-186. PDF full text. Gearchiveerd op 9 maart 2021.