@book{Abdallah:306,
      author        = "S. Abdallah and S. Thompson and J. Michaelson and N. Marks
                       and N. Steuer",
      title         = "{The Happy Planet Index 2.0: Why good lives don’t have
                       to cost the Earth; 39965}",
      publisher     = "New Economics Foundation",
      year          = "2009",
}