RODRÍGUEZ-BERMÚDEZ, R.; MIRANDA, M.; ORJALES, I.; REY-CRESPO, F.; MUÑOZ, N.; LÓPEZ-ALONSO, M. Holstein-Friesian milk performance in organic farming in North Spain: Comparison with other systems and breeds. Spanish Journal of Agricultural Research, v. 15, n. 1, p. e0601, 20 Apr. 2017.