Latifi, M., A. Rashidi, R. Abdollahi-Arpanahi, and M. Razmkabir. “Comparison of Different Selection Methods for Improving Litter Size in Sheep Using Computer Simulation”. Spanish Journal of Agricultural Research, Vol. 18, no. 1, Apr. 2020, p. e0403, doi:10.5424/sjar/2020181-15459.