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„Archive copy”. Archive copy. Arhivirano iz originala na datum 2007-02-12. Pristupljeno 2008-08-08.
Xia Li et al. Pseudogenization of a Sweet-Receptor Gene Accounts for Cats' Indifference toward Sugar. PLOS Genetics; 2005;1;1:[1]Arhivirano 2006-04-03 na Wayback Machine-u Datum pristupa: 08. studeni 2006.
Xia Li et al. Pseudogenization of a Sweet-Receptor Gene Accounts for Cats' Indifference toward Sugar. PLOS Genetics; 2005;1;1:[1]Arhivirano 2006-04-03 na Wayback Machine-u Datum pristupa: 08. studeni 2006.
„Cat Skeleton”. Cat Skeleton. Arhivirano iz originala na datum 2006-12-06. Pristupljeno 12. 12. 2006.