Lāsma Cielava and Daina Jonkus and Līga Paura, The Effect of Cow Reproductive Traits on Lifetime Productivity and Longevity. journal = {International Journal of Animal and Veterinary Sciences}, [online]. World Academy of Science, Engineering and Technology. January 2017, vol. 123(3). 220 - 223 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/10006512.