Schaible, R., and D.A. Dickson. “Effects of Drainage Intensity and Planting Position on the Growth and Nutrition of Second Rotation Sitka Spruce on Shallow Peat. ”. Irish Forestry (November 1, 1990). Accessed April 24, 2024. https://journal.societyofirishforesters.ie/index.php/forestry/article/view/9677.