1. Diagnostic and Statistic Manual of Mental Disorders revised (DSM-III R),1987
2. Andersson, L., 1984. Ageing and loneliness—An interventional study of a group elderly women in Stockholm. Dissertation. Karolinska Institute, Stockholm.
3. Loneliness in the Swedish aged;Berg;J. Gerontol.,1981
4. Berg, S., Djurfeldt, H., Landahl, S., Mellström, D., 1989. De äldres hälsa. Några erfarenheter från gerontologiska och geriatriska befolkningsundersökningar i Göteborg (H70 och IVÄG). Unpublished manuscript. Göteborg University (in Swedish).
5. Loneliness among the oldest old, a comparison between residents living in nursing homes and residents living in the community;Bondevik;Int. J. Aging Hum. Dev.,1996