GRENČÍKOVÁ, Adriana, VOJTOVIČ, Sergej and GULLEROVÁ, Monika. Staff qualification and the quality of tourism-related services in the Nitra region. Bulletin of Geography. Socio-economic Series. Online. 7 August 2013. No. 21, pp. 41-48. [Accessed 18 July 2024]. DOI 10.1515/bog-2013-0019.