Zarcula, S. M., C. Mircu, G. Bonc, D. Kirovski, G. Otavă, M. Ahmadi-Khoie, and C. Tulcan. “Effects of Clinoptilolite Addition to Colostrum on the Concentration of Serum Proteins, Minerals, Enzyme Activities in Neonatal Calves”. JOURNAL OF ADVANCES IN CHEMISTRY, vol. 10, no. 2, June 2014, pp. 2290-6, doi:10.24297/jac.v10i2.5495.