00516nam a2200157 a 450000500170000000800410001703500150005805000190007324500440009226000630013630000180019965000350021765000440025265000350029671000270033120260818100400.0190711s1997    ne a    r     000 0 eng d  a.b12317263 4aQE33.2 R4bE5800aEnvisat-1 :bmission and system summary  aNoordwijk, The Netherlands :bEuropean Space Agency,c1997  a84 p. :bill. 0aENVISAT (Artificial satellite) 0aArtificial satellites in remote sensing 0aGeographic information systems2 aEuropean Space Agency