- Wahl, H.W.; Claus, C.; Mollenkopf, H.; Oswald, F.
- Environmental Aspects of Quality of Life in Old Age. Conceptual and Empirical Issues.
- International and Multi-Disciplinary Perspectives, 2007, 101 - 122
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no new data on present happiness.