Löfstedt H., Hagström K., Bryngelsson I.-L., Holmström M., and Rask-Andersen A. “Respiratory Symptoms and Lung Function in Relation to Wood Dust and Monoterpene Exposure in the Wood Pellet Industry”. Upsala Journal of Medical Sciences, vol. 122, no. 2, Mar. 2017, pp. 78–84, doi:10.1080/03009734.2017.1285836.