Трончук, І. С., Т. М. Рак, and Н. В. Чижанська. “The Structure and Nutritiousness of Diets for Milk Cows With the Annual Milk from Productivity 6-9 Thousand Kilograms”. Scientific Progress & Innovations, no. 1, Mar. 2012, pp. 107-11, doi:10.31210/visnyk2012.01.25.