1.
Nilsson J-E. A 20-year study of a nest-box breeding bird population with special regard to the Pied Flycatcher Ficedula hypoleuca. Ornis Svec [Internet]. 2019 Oct. 31 [cited 2024 Nov. 22];18(1):52–64. Available from: https://journals.lub.lu.se/os/article/view/20235