Based on spectral and photometric observations from the following observatories: Castanet-Tolosan, Dominion Astrophysical Observatory, Heidelberg, Hvar, Ondrejov, Skalnaté Pleso and Stará Lesná and also on photoelectric photometry by AAVSO members.

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Tables 2 and 4 are available only in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/416/669

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...2003)

Their preliminary report is based on extracted echelle spectra near H $\alpha$ without flux or wavelength calibration.

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