Krupová, Zuzana, Emil Krupa, Marie Wolfová, and Monika Michaličková. 2014. “Impact of Variation in Production Traits, Inputs Costs and Product Prices on Profitability in Multi-Purpose Sheep”. Spanish Journal of Agricultural Research 12 (4), 902-12. https://doi.org/10.5424/sjar/2014124-6166.