Rhim S.-J. ‚ÄúVocalization and Behavior of Holstein Cows and Calves After Partial and Complete Separation‚ÄĚ. Revista Colombiana De Ciencias Pecuarias, Vol. 26, no. 1, Mar. 2013, pp. 24-29, https://revistas.udea.edu.co/index.php/rccp/article/view/324811.