Stojanovic, B., Grubic, G., Djordjevic, N., Glamocic, D., Bozickovic, A., & Ivetic, A. (2012). Effects of different levels of physically effective fibers in diets for cows in early lactation. Spanish Journal of Agricultural Research, 10(1), 99-107. https://doi.org/10.5424/sjar/2012101-159-11