Heumesser, C., Fritz, S. <https://pure.iiasa.ac.at/view/iiasa/98.html> ORCID: https://orcid.org/0000-0003-0420-8549 <https://orcid.org/0000-0003-0420-8549>, & Obersteiner, M. <https://pure.iiasa.ac.at/view/iiasa/219.html> ORCID: https://orcid.org/0000-0001-6981-2769 <https://orcid.org/0000-0001-6981-2769>  (2011).  Identifying benefits and challenges arising from the voluntary provision of GEOSS.   In: 34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring, 10-15 April 2011, Sydney, NSW; Australia.