Svensson, S., A. M. Thorner, and N. E. I. Nyholm. “Species Trends, Turnover and Composition of a Woodland Bird Community in Southern Sweden During a Period of Fifty-Seven Years”. Ornis Svecica, vol. 20, no. 1, Jan. 2010, pp. 31–44, doi:10.34080/os.v20.22641.