Heggarty, Paul; Maguire, Warren; McMahon, April (2010). «Splits or waves? Trees or webs? How divergence measures and network analysis can unravel language histories». Philosophical Transactions of the Royal Society B. 365: 3829–3843. doi:10.1098/rstb.2010.0099..
Ross, Malcolm and Åshild Næss (2007). «An Oceanic Origin for Äiwoo, the Language of the Reef Islands?». Oceanic Linguistics. 46: 456–498. doi:10.1353/ol.2008.0003.