Rade, P., Goran, T., & Nada, P. (2009). Correlations of yield and grain yield components of winter wheat varieties. University of Belgrade - Faculty of Agriculture, Belgrade.

Rade, Protić, Todorović Goran, and Protić Nada. Correlations of Yield and Grain Yield Components of Winter Wheat Varieties. University of Belgrade - Faculty of Agriculture, Belgrade, 2009.

Rade, Protić, et al. Correlations of Yield and Grain Yield Components of Winter Wheat Varieties. University of Belgrade - Faculty of Agriculture, Belgrade, 2009.