1. Species as individuals;Brogaard;Biology & Philosophy,2004
2. Taro in Vanuatu: Towards a dynamic conservation strategy;Caillon;LEISA Magazine,2004
3. The fate of the mammoth: Fossils, myth, and history;Cohen,2002
4. CREO. (n.d.). New criteria for analyzing recent extinctions (the results of the CREO Workshop held on May 15 and 16, 1999). http://creo.amnh.org/goals2.html.
5. The general lineage concept of species and the defining properties of the species category;de Queiroz,1999