Чебаков, М.П., Лебедєва, Г.Д. and Колач, Є.Й. 2006. The sort specification of forming wheat winter productivity that depends on sowing terms in the Western region of Ukraine. Plant varieties studying and protection. 4 (Dec. 2006), 70–78. DOI:https://doi.org/10.21498/2518-1017.4.2006.68033.