Population Density is a Key Factor in Declining Human Fertility Wolfgang LutzMaria Rita TestaDustin J. Penn OriginalPaper 20 March 2007 Pages: 69 - 81
Vulnerabilities and risks in population and environment studies Eduardo Marandola JrDaniel Joseph Hogan Original Paper 06 February 2007 Pages: 83 - 112
A SRES-based gridded global population dataset for 1990–2100 Magnus BengtssonYanjun ShenTaikan Oki Original Paper 06 February 2007 Pages: 113 - 131