Slide 1
Slide
notes: A Document Number used on a Journal is supposed to represent and be
a tracing link to a formal source document for the Journal. This may not
always be the case in practice, but the system will nevertheless track all Document
Numbers used on Journals, and by an input of a Document Number, the system
is able to lead us to any Journals where this Document Number was ever
used. That is quite useful.
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