Żmuda-Pałka, M. and Siwek, M. 2019. Senior Tourism – Opportunity and Challenges of Accommodation Facilities in the Context of an Aging Population, Based on the Example of Krynica-Zdrój in Poland. Studies of the Industrial Geography Commission of the Polish Geographical Society. 33, 3 (Sep. 2019), 176–187. DOI:https://doi.org/10.24917/20801653.333.12.