Based on observations obtained with the FORS Instruments at the ESO VLT, Paranal, Chile on the course of the observing proposals 65.O-0049(A), 66.A-0547(A), 68.A-0013(A), 68.A-0014(A)

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http://ines.laeff.esa.es

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...1998)

The sample investigated by Heckman et al. (1998) actually contains 45 galaxies. But 3 of these spectra are not available on the IUE archive, and 6 were excluded from our study for having either a too low S/N or showing strong emission lines or defects close to the Si IV and/or C IV lines.

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