POSSIBILITY OF REDUCING CALVING DIFFICULTIES BY SELECTION III.- A NOTE ON PELVIC SIZE IN RELATION TO BODY WEIGHT OF CATTLE St. C. S. TAYLOR, L. S. MONTEIRO and B. PERREAUGenet. Sel. Evol., 7 1 (1975) 49-57DOI: https://doi.org/10.1051/gse:19750105