Piłat, J., Majtkowski, W., Majtkowska, G., Żurek, G., & Mikołajczak, J. (2007). The feeding value assessment of forage from some C-4 grass species in different phases of vegetation. Part III. Panicum virgatum L. Plant Breeding and Seed Science, 55, 63–72. Retrieved from http://ojs.ihar.edu.pl/index.php/pbss/article/view/633