M. J. Jónás, E., I. Mucsi, and I. Komlósi. “Correlation Between Body Condition Change and Reproduction Parameters of Holstein-Frisian Cows After Calving”. Acta Agraria Debreceniensis, no. 40, Dec. 2010, pp. 49-52, doi:10.34101/actaagrar/40/2705.