Science for managing ecosystem services: Beyond the Millennium Ecosystem Assessment,
Carpenter, Stephen, Mooney H. A., Agard J., Capistrano D., DeFries R., Diaz S., Dietz T., Duraiappah A., Oteng-Yeboah A., Pereira H. M., et al.
, Proceedings of the National Academy of Sciences of the United States of America, February 3, 2009, Volume 106, Number 5, p.1305-1312, (2009)