BVRI observations of 235 bright quasars
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https://b2find.eudat.eu/dataset/b35aa519-1c72-55d7-b072-6d1d466671e7
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Photometric observations of 235 extragalactic objects that are potential targets for the Space Interferometry Mission (SIM) are presented. Mean B, V, R, I magnitudes at the 5%...
