↑ Peter Gravlund, Morten Meldgaard, Svante Pääbo, and Peter Arctander (1998). “Polyphyletic Origin of the Small-Bodied, High-Arctic Subspecies of Tundra Reindeer (Rangifer tarandus)”. Molecular Phylogenetics and Evolution 10 (2): 151–9. PMID9878226. doi:10.1006/mpev.1998.0525.
↑ S. A. Byun, B. F. Koop, and T. E. Reimchen (2002). “Evolution of the Dawson caribou (Rangifer tarandus dawsoni)”. Can. J. Zool. 80 (5): 956–960. doi:10.1139/z02-062.
↑ "In North America and Eurasia the species has long been an important resource—in many areas the most important resource—for peoples inhabiting the northern boreal forest and tundra regions. Known human dependence on caribou/wild reindeer has a long history, beginning in the Middle Pleistocene (Banfield 1961:170; Kurtén 1968:170) and continuing to the present....The caribou/wild reindeer is thus an animal that has been a major resource for humans throughout a tremendous geographic area and across a time span of tens of thousands of years." Ernest S. Burch, Jr. (1972). “The Caribou/Wild Reindeer as a Human Resource”. American Antiquity 37 (3): 339–368. JSTOR278435. doi:10.2307/278435.
