Baltrėnas P, Vaitkutė D. Investigation and evaluation of copper and zinc concentration tendencies in Pinus sylvestris L. tree-rings. JEELM [Internet]. 2011 Dec. 21 [cited 2025 May 10];19(4):278-86. Available from: https://journals.vilniustech.lt/index.php/JEELM/article/view/5349