... [*]
Corresponding author.
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...[*][*]
Email: dsjs@dcs.ed.ac.uk
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...[*][*]
Email: rnp@dcs.ed.ac.uk
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... Lens[*]
Magic Lens is a trade mark of the Xerox Corporation.
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... browsers[*]
Sun's Hotjava is an exception in providing progress indicators for embedded downloads.
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Rob Procter
1999-03-05