@article{000234708, title = "The influence of different carbohydrate sources on the utilization of urea nitrogen by lactating dairy cows", author = "Moeller, P.D.", year = "1973", journal = "Beretning fra Forsoegslaboratoriet", volume = "412", pages = "204", url = "https://eurekamag.com/research/000/234/000234708.php" }