[1]
J. Rolstad, “Use of aspen Populus tremula by Capercaillie Tetrao urogallus in southeastern Norway”, Ornis Fenn, vol. 65, no. 2, pp. 65–68, Jul. 1988, Accessed: Nov. 24, 2025. [Online]. Available: https://ornisfennica.journal.fi/article/view/133258