Kuitunen, K., K. Saarinen, J. Jantunen, and S. Saarino. “A Comparison of Farmland Avifauna Between Finnish and Russian Karelia”. Ornis Fennica 80, no. 4 (December 31, 2003): 172–181. Accessed November 25, 2024. https://ornisfennica.journal.fi/article/view/133604.