Year: 1993Publication Type: Journal Article - Multi-AuthorJournal Volume: 90Page Range: 9557-9561Article/Chapter Title: Mitochondrial DNA sequence evolution in the Arctoidea Journal Name: Proceedings of the National Academy of Sciences of the United States of AmericaAuthor Name/Init: Author Surname: ZhangAuthor Initials: Y. Author Surname: RyderAuthor Initials: O.A.
