VI/90		Wide-Field Plate Database (Tsvetkov+ 1997) ReadMe    Similar Catalogues
			(c)Main data file (323635 rows)
			List of plate archives (294 rows)
			Plate quality data (51549 rows)
			Notes (53217 rows)
			Observers' names (35993 rows)
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			(c)  indicates tables which contain celestial coordinates