Lundgren B, Hedenström A, Pettersson J. Correlation between some body components and visible fat index in the Willow Warbler Phylloscopus trochilus (L.). Ornis Svec [Internet]. 1995 Apr. 1 [cited 2024 Nov. 22];5(2):75-9. Available from: https://journals.lub.lu.se/os/article/view/23007