The times of the Observations of SS Cyg and Z Cam in [vsnet-obs 20410] are incorrect, here are the corrections : CYGSS 990303.046 9.9 CMG CAMZ 990503.050 13.0 CMG Sorry for the inconvenience. -- Georg Comello | Tel. : (31)-50-3634050 Kapteyn Laboratorium | Fax : (31)-50-3636100 University of Groningen | E-mail: comello@astro.rug.nl P.O. Box 800, 9700 AV Groningen | The Netherlands |