@book {
	author = {Gajdošík, Tomáš and Gajdošíková, Zuzana and Marčeková, Radka},
	title = {Informačné technológie v cestovnom ruchu},
	year = {2017},
	publisher = {Wolters Kluwer},
	isbn = {978-80-8168-588-0},
	doi = {},
	URL = {https://akademia.aspi.sk/kiadvany/153}
}