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Wichmann, Søren. 2013. A classification of Papuan languagesArchived 2020-11-25 at the Wayback Machine. In: Hammarström, Harald and Wilco van den Heuvel (eds.), History, contact and classification of Papuan languages (Language and Linguistics in Melanesia, Special Issue 2012), 313-386. Port Moresby: Linguistic Society of Papua New Guinea.