L. Sivakova, A. Zubkova, and W. Pellowski, “Errata: Communications – Scientific Letters of the University of Zilina, Vol. 20, No.2, 2018, „Application of a Priori and a Posteriori Estimate on Risk Assessment“, pp. 56-61. The proper name of third author should be as follows: Witalis Pellowski.”, Communications, vol. 20, no. 4, p. 83, Dec. 2018.