Folstad, I., and A. C. Nilssen. 1990. “Abundance of warble fly larvae Hypoderma tarandi (L.) (Diptera:oestridae) in reindeer Rangifer tarandus tarandus (L.) and its relation to reindeer postcalving migration”. Rangifer 10 (3):239. https://doi.org/10.7557/2.10.3.862.