Kohan, A., L. Hlushchenko, V. Hanhur, O. Samoylenko, O. Len, R. Olepir, S. Kalinichenko, and L. Kavalir. “Unique Experiment of Global Agriculture in the Poltava Region – Long-Term Winter Rye Cultivation”. Agricultural Science and Practice, Vol. 4, no. 1, Apr. 2017, pp. 63-69, doi:10.15407/agrisp4.01.063.