1. Guinness Book of World Records;McWhirter,1981
2. Bureau of the Census: Current Population Reports, Special Studies: Sixty-five plus in America, Government Printing Office, Washington, DC
3. Anatomic and body composition changes with ageing;Rossman,1997
4. Body composition at age 70, 75, 79, and 81 years: a longitudinal population study;Steen,1985
5. The fire of life;Klieber,1985