00588nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001500084100001900099245017700118260003400295300001500329490003900344650001500383700002000398IN-BaIIA211028s9999    xx            000 0 eng d  a3-540-67436-5  cIIA Library  a521.9bWAL  aWalter, Hans G 0aAstrometry of fundamental cataloguesbthe evolution from optical to radio reference framescHans G. Walter and Ojars J. Sovers                                                aBerlinbSpringer-Verlagc2000  axiv, 231p.  aAstronomy and astrophysics library  aAstrometry  aSovers, Ojars J