@article{LI Deren_419, author = {LI Deren}, title = {On Space-Air-Ground Integrated Earth Observation Network}, publisher = {Journal of Geo-information Science}, year = {2012}, journal = {Journal of Geo-information Science}, volume = {14}, number = {4}, eid = {419}, pages = {419-425}, keywords = {
Space-Air-Ground integrated;earth observation network;space information service
}, doi = https://www.dqxxkx.cn/EN/10.3724/SP.J.1047.2012.00419 }