Deloitte study (2007) - Serving the Aging Citizen(页面存档备份,存于互联网档案馆) CoViVE Consortium Population Ageing in Flanders and Europe UN Programme on Ageing(页面存档备份,存于互联网档案馆)
General Budget, the Technology Research Programme, the Science Programme and ESA's technical and operational infrastructure." ESA 1995,"...it is the only