Andersen, Line H., Peter Sunde, Volker Loeschcke, och Cino Pertoldi. 2015. ”A Population Viability Analysis on the Declining Population of Little Owl (Athene Noctua) in Denmark Using the Stochastic Simulation Program VORTEX”. Ornis Fennica 92 (3):123–143. https://doi.org/10.51812/of.133874.