Zheleznov, A., L. Solonenko, N. Zheleznova, and N. Burmakina. “The Effects of Inbreeding and Heterosis by Amaranth (Amaranthus L.) and the Ways Their Possible User at Introduction”. Plant Introduction, Vol. 39, Sept. 2008, pp. 3-8, doi:10.5281/zenodo.2560570.