Юник, А. В., Н. В. Новицька, and В. А. Мокрієнко. “Sowing Properties of Summer Rape Seeds Depending on Fertilizers and Terms of Harvesting”. Plant varieties studying and protection, no. 4 (December 20, 2006): 12–18. Accessed August 10, 2022. http://journal.sops.gov.ua/article/view/67741.