Crossbreeding the Sardinian and East Friesian breeds in Sardinia J. G. BOYAZOGLU, S. CASU, J. C. FLAMANT, G. RUDA, G. PICINELLI and R. CARTA Genet. Sel. Evol., 11 1 (1979) 23-51 DOI: 10.1051/gse:19790104