Kjeller, Elsie, Jonas Waldenström, Johan Elmberg, and Gunnar Gunnarsson. “Herbivory on Aquatic Macrophytes by Geese and swans—a Review of Methods, Effects, and Management”. Ornis Svecica 34 (August 8, 2024): 119–137. Accessed August 17, 2024. https://journals.lub.lu.se/os/article/view/25271.