Ollikainen, Markku, Anna-Kaisa Kosenius, Eliisa Punttila, Venla Ala-Harja, Samuli Puroila, Antti Iho, and Petri Ekholm. “Gypsum Amendment of Arable Fields As a Water Protection Measure – farmers’ Experience, Phosphorus Reduction Potential and Associated Costs Drawn from a Large Scale Pilot”. Agricultural and Food Science 29, no. 5 (December 31, 2020): 383–394. Accessed April 1, 2023. https://journal.fi/afs/article/view/88902.