MtDNA from fossils reveals a radiation of Hawaiian geese recently derived from the Canada goose (Branta canadensis)v. 99No. 3National Academy of Sciences (U.S.)1399–1404
Paxinos, E. E., James, Helen F., Olson, Storrs L., Sorenson, Michael D., and Fleischer, Robert C. 2002. "MtDNA from fossils reveals a radiation of Hawaiian geese recently derived from the Canada goose (Branta canadensis)." Proceedings of the National Academy of Sciences of the United States of America, 99, (3) 1399–1404.