- Daatland, S.O.; Hansen, T.
- Well-Being, Control, and Ageing.
- Mollenkopf, H.;Walker, A. (Eds): ''Quality of Life and Old Age", 'Springer, 2007, Dordrecht, Netherlands, 33 - 64.
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.