1. Transgenerational Design Matters (2009). http://transgenerational.org/aging/demographics.htm . Accessed 10 Mar 2017
2. Patterson, I.: Growing Older. Tourism and Leisure Behaviour of Older Adults. Cabi, Cambridge (2006)
3. Maresova, P., Klimova, B., Kuca, K.: Alzheimer’s disease: cost cuts call for novel drugs development and national strategy. Ceska Slov. Farm. 64, 25–30 (2015)
4. Maresova, P., Mohelska, H., Valis, M., Kuca, K.: Alzheimer disease and its treatment costs, case study in the Czech. Neuropsychiatr. Dis. Treat. 11, 2349–2354 (2015)
5. Hanson, V.L.: Age and web access: the next generation. In: Proceedings of the 2010 W4A – Technical, Madrid, pp. 7–15 (2009)