Dankovic, N. B., Z. H. Peric, D. S. Antic, S. L. Peric, and S. S. Nikolic. “Robustness of the Prediction Filter in Differential Pulse Code Modulation System”. Elektronika Ir Elektrotechnika, vol. 22, no. 5, Oct. 2016, pp. 74 -78, doi:10.5755/j01.eie.22.5.16347.