@article{Callaghan_Tyler_Carlsson_1990, title={Fluctuation in plant growth and in reindeer populations in Svalbard}, volume={10}, url={https://septentrio.uit.no/index.php/rangifer/article/view/848}, DOI={10.7557/2.10.3.848}, number={3}, journal={Rangifer}, author={Callaghan, T. V. and Tyler, N. J. C. and Carlsson, B.}, year={1990}, month={Sep.}, pages={157–158} }