J. A. Padilla, J. M. Corral, A. Quesada, M. Izuierdo, J. C. Parejo, and M. E. Martínez-Trancón, “Short communication. Single nucleotide polymorphisms in the ovine CSN1S2 gene for alphaS2–casein”, Span. j. agric. res., vol. 11, no. 1, pp. 80-83, Jan. 2013.