UUSITALO, R., E. TURTOLA, and R. LEMOLA. “Phosphorus Losses from a Subdrained Clayey Soil As Affected by Cultivation Practices”. Agricultural and Food Science 16, no. 4 (January 4, 2007): 352–365. Accessed May 5, 2024. https://journal.fi/afs/article/view/5890.