Lallukka, Ulla, Eero Varis, and Ritva Repo. “The Effect of the Source of Nitrogen on Protein Fractions and Their Proportions in Barley Grains”. Agricultural and Food Science 54, no. 2 (April 1, 1982): 155–164. Accessed December 25, 2024. https://journal.fi/afs/article/view/72100.