A. Rybarczyk, M. Kmieć, R. Szaruga, F. Napierała, and A. Terman, “The effect of calpastatin polymorphism and its interaction with RYR1 genotypes on carcass and meat quality of crossbred pigs”, AFSci, vol. 19, no. 4, pp. 294–301, Jan. 2010.