sus Maritimus". Mammalian Species. 145 (145): 1–7. doi:10.2307/3503828. JSTOR 3503828. OCLC 46381503.↑ Lisette P. Waits, Sandra L. Talbot, R. H. Ward and G. F. Shields (1998). "Mitochondrial DNA phylogeography of the North American brown bear and implications for conservation". Conservation Biology. pp. 408–417. සම්ප්‍රවේශය 1 August 2006. {{cite web}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)↑ Marris, E. (2007). "Linnaeus at 300: The species and the specious". Nature. 446 (7133): 250–253. doi:10.1038/446250a. PMID 17361153.↑ Edwards CJ; Suchard MA; Lemey P; Welch JJ; Barnes I; et al. (2011). "Ancient hybridization and an Irish origin for the modern polar bear matriline". Current Biology. 21 (15): 1251–8. doi:10.1016/j.cub.2011.05.058. PMID 21737280. {{cite journal}}: Unknown parameter |author-separator= ignored (help)↑ Hailer F; Kutschera V; Hallström BM; Klassert D; Fain SR; Leonard JA; Arnason U; Janke A (2012). "Nuclear genomic s