PÁTEK, Josef - MALACHOVSKÝ, Andrej. Innovation process in the spa enterprises in the years 2018-2022 with a view to 2028. In Czech hospitality and tourism papers. - Praha : Vysoká škola hotelová, 2025. ISSN 1801-1535, 2025, vol. 21, no. 39, pp. 4-9. Available on Internet: <https://drive.google.com/file/d/1E7BMtX0PrvZz70kMfrDtFqPB1ZVuOCNM/view>