Andeden, E., Yediay, F., Baloch, F., Shaaf, S., Kilian, B., Nachit, M. & Ozkan, H. (2011) Distribution of Vernalization and Photoperiod Genes (Vrn-A1, Vrn-B1, Vrn-D1, Vrn-B3, Ppd-D1) in Turkish Bread Wheat Cultivars and Landraces. CEREAL RESEARCH COMMUNICATIONS , 39(3), 352-364.