Warzecha, T., A. Sutkowska, and H. Góral. “Male Sterility of Triticale Lines Generated through Recombination of Triticale and Rye Maintainers”. Spanish Journal of Agricultural Research, Vol. 12, no. 4, Nov. 2014, pp. 1124-30, doi:10.5424/sjar/2014124-6144.