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- [8] INVESTIGATION OF THE SUITABILITY OF HEIFERS OF VARIOUS COMMERCIAL TYPES FOR EARLY CALVING FROM THE ASPECT OF MILK-PRODUCTION IN THE 1ST LACTATION [J]. ZIVOCISNA VYROBA, 1979, 24 (02): : 109 - 122
- [9] 1ST CONCLUSIONS ON A METHODICAL APPROACH TO THE COMPARISON OF MILK-PRODUCTION PLANTS [J]. AGRARTECHNIK, 1979, 29 (11): : 511 - 512