1. Population Density is a Key Factor in Declining Human Fertility

   • Wolfgang Lutz
   • Maria Rita Testa
   • Dustin J. Penn

   OriginalPaper 20 March 2007 Pages: 69 - 81

   

2. Vulnerabilities and risks in population and environment studies

   • Eduardo Marandola Jr
   • Daniel Joseph Hogan

   Original Paper 06 February 2007 Pages: 83 - 112

   

3. A SRES-based gridded global population dataset for 1990–2100

   • Magnus Bengtsson
   • Yanjun Shen
   • Taikan Oki

   Original Paper 06 February 2007 Pages: 113 - 131