Elonen, Paavo, Lasse Nieminen, and Osmo Kara. “Sprinkler Irrigation on Clay Soils in Southern Finland III. Effect on the Quality of Grain Yield”. Agricultural and Food Science 39, no. 2 (May 1, 1967): 90–98. Accessed November 26, 2024. https://journal.fi/afs/article/view/71677.