Волянська, В. В., А. І. Гізун, and В. О. Гнатюк. “Etalon Models of Linguistic Variables for Information Security intruders’ Detection and Identification”. Ukrainian Scientific Journal of Information Security, vol. 19, no. 1, Apr. 2013, pp. 13-21, doi:10.18372/2225-5036.19.4683.