@article{Russell et al._1993, title={Chapter 3 - Late spring}, volume={13}, url={https://septentrio.uit.no/index.php/rangifer/article/view/1062}, DOI={10.7557/2.13.5.1062}, number={5}, journal={Rangifer}, author={Russell et al., Don E.}, year={1993}, month={Dec.}, pages={73–111} }