1. Antikainen A., Houtsonen J., Kauppila J., Huotelin H., 1996. Living in a learning society Falmer Press, Washington, DC.
2. Antonucci T. C., 1985. Personal characteristics, social support and social behavior. Binstock R. H., Shanas E., , ed.Handbook of aging and the social sciences94-128. Van Nostrand Reinhold, New York.
3. Beck U., 1992. The risk society: Towards a new modernity Sage, Beverly Hills, CA.
4. Beck U., Giddens A., Lash S., 1995. Reflexive modernization: Politics, tradition and aesthetics in the modern social order Stanford, Palo Alto, CA.
5. Bengtson V. L., 1993. Is the contract across generations changing? Effects of population aging on obligations and expectations across age groups. Bengtson V. L., Achenbaum W. A., , ed.The changing contract across generations3-23. Aldine DeGruyter, New York.