Hagner, Marleena, Tiina Pasanen, Bengt Lindqvist, Isa Lindqvist, Kari Tiilikkala, Olli-Pekka Penttinen, and Heikki Setälä. “Effects of Birch Tar Oils on Soil Organisms and Plants”. Agricultural and Food Science 19, no. 1 (January 1, 2010): 13–23. Accessed November 24, 2024. https://journal.fi/afs/article/view/5970.