LIPKOVÁ, Ľudmila - GREŠŠ, Martin - PONCAROVÁ, Alena. Tax Systems in the Czech Republic and the Slovak Republic: Comparison with an Emphasis on Income Tax. - Registrovaný: Scopus, Registrovaný: Web of Science. In Economic annals-XXI. - Kiev : Institute of Society Transformation, 2017. ISSN 1728-6239, 2017, vol. 165, no. 5-6, pp. 47-51 online.