@article{belstra_flowers_croom_degroot_see_2005, title={Urinary excretion of collagen degradation markers by sows during postpartum uterine involution}, volume={85}, DOI={10.1016/j.anireprosci.2004.04.035}, number={02-Jan}, journal={Animal Reproduction Science}, author={Belstra, B. A. and Flowers, W. L. and Croom, W. J. and Degroot, J. and See, M. T.}, year={2005}, pages={131–145} }
 @article{belstra_flowers_see_2004, title={Factors affecting temporal relationships between estrus and ovulation in commercial sow farms}, volume={84}, DOI={10.1016/j.anireprosci.2004.02.005}, number={04-Mar}, journal={Animal Reproduction Science}, author={Belstra, B. A. and Flowers, W. L. and See, M. T.}, year={2004}, pages={377–394} }