Källander, H., L.-A. Hansson, C. Brönmark, and A. Nicolle. “Waterbird Dynamics at the Shallow Lake Krankesjön, Southern Sweden: A Long-Term Study”. Ornis Svecica, vol. 19, no. 2, Apr. 2009, pp. 65-89, doi:10.34080/os.v19.22653.