Osikowski, M., B. Borys, and M. A. Osikowski. 1988. “Performance of Crossbreds of Polish Merino Dams With F1 Rams: Finnsheep X Polish Merino. C. Preliminary Results of Reproductive Performance of Ewes”. Agricultural and Food Science 60 (6):549-52. https://doi.org/10.23986/afsci.72308.