Dúžik, Ondrej. “Analysis of the Dependence of the Gross Money Income of Single‑member Households in Slovakia”. Krakow Review of Economics and Management Zeszyty Naukowe Uniwersytetu Ekonomicznego W Krakowie, no. 11(947), May 2016, pp. 53-66, https://doi.org/10.15678/ZNUEK.2015.0947.1104.