ŠOLTÉS, Michal - ŠKROVÁNKOVÁ, Lea - BULECA, Ján. Using Markov Chains in the Social Security System. - Registrovaný: Web of Science, Registrovaný: Scopus. In Economic computation and economic cybernetics studies and research. - Bucharest : The Bucharest University of Economic Studies. ISSN 1842-3264, 2017, vol. 51, no. 1, pp. 223-232 online.