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Demography|February 19, 2011
Age distribution and the stable equivalentN Keyfitz
Annals of the New York Academy of Sciences|February 18, 1994
Influence of human reproduction on environment. What features of biology and economics cause them to see population differently?N Keyfitz
Proceedings of the National Academy of Sciences of the United States of America|August 1, 1993
Are there ecological limits to population?N Keyfitz
Population Studies|November 19, 2011
Changing vital rates and age distributionsN Keyfitz
Demography|February 15, 2011
How many people have lived on the earth?N Keyfitz
Demography|November 1, 1977
What difference would it make if cancer were eradicated? An examination of the Taeuber paradoxN Keyfitz
Migration World Magazine|January 1, 1992
The political context of immigration: Europe and AmericaN Keyfitz
Population Studies|November 15, 2011
Finite approximations in demographyN Keyfitz
Population Index|April 1, 1991
Population and development within the ecosphere: one view of the literatureN Keyfitz
Population Studies|November 1, 1996
Population growth, development and the environmentN Keyfitz
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