Salonen, V., and A. Penttinen. “Factors Affecting Nest Predation in the Great Crested Grebe: Field Observations, Experiments and Their Statistical Analysis”. Ornis Fennica 65, no. 1 (March 31, 1988): 13–20. Accessed November 22, 2024. https://ornisfennica.journal.fi/article/view/133251.