Hartikainen, Helinä. “Relationship Between Phosphorus Intensity and Capacity Parameters in Finnish Mineral Soils: I Interpretation and Application of Phosphorus Sorption-Desorption Isotherms”. Agricultural and Food Science 54, no. 4 (September 1, 1982): 245–250. Accessed May 21, 2024. https://journal.fi/afs/article/view/72103.