Handeland, K., A. Skorping, S. Stuen, and T. Slettbakk. “Experimental studies of Elaphostrongylus rangiferi in reindeer (Rangifer tarandus tarandus): Clinical observations”. Rangifer, vol. 14, no. 2, Dec. 1994, pp. 83-87, doi:10.7557/2.14.2.1138.