@article{JRC24183, address = {}, year = {2003}, author = {Annoni A and Smits PC}, abstract = {Abstract not available }, title = {Main Problems in Building European Environmental Spatial Data.}, type = {}, url = {}, volume = {24}, number = {20}, journal = {Intern. Journal of Remote Sensing}, pages = {3887-3902}, issn = {}, publisher = {}, doi = {} }