1. Alejziak, B. (1992), “Businesswoman: a special care tourist type”, Bulletin of the Polish Tourism Association, Vol. 1 No. 2, pp. 29‐33.
2. Alejziak, W. (1991), “Tourist activity of Swedish residents on the example of Stockholm population”, Folia Turistica, Vol. 2, pp. 9‐33 (in Polish).
3. Alejziak, W. (2007), “Determinants and social disproportions of tourist activity based on leisure of Polish residents in 2005”, Turystyka i Rekreacja, Vol. 3, pp. 12‐33 (in Polish).
4. The Differences Between Participants and Non-participants in a Senior Travel Program
5. Brocławik, K. (1988), “Tourism within the systemic needs concept”, Problemy Turystyki, Vol. 2 No. 40, pp. 19‐28 (in Polish).