Hagner, M., Pasanen, T., Lindqvist, B., Lindqvist, I., Tiilikkala, K., Penttinen, O.-P. and Setälä, H. 2010. Effects of birch tar oils on soil organisms and plants. Agricultural and Food Science. 19, 1 (Jan. 2010), 13–23. DOI:https://doi.org/10.2137/145960610791015096.