Comparison of different machine milking clusters on dairy ewes with large size teats N. Fernández, R. Requena, MC Beltran, C. Peris, M. Rodríguez, P. Molina and A. TorresAnn. Zootech., 46 3 (1997) 207-218DOI: https://doi.org/10.1051/animres:19970302