Kuusi, Taina. “The Most Important Quality Criteria of Some Homegrown Black-Currant Varieties II. Dry Matter, Pectin, Acid Content, Colour and Formol Value”. Agricultural and Food Science 37, no. 4 (December 1, 1965): 282–304. Accessed December 2, 2024. https://journal.fi/afs/article/view/71646.