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NBR (search Newztext )
Newztext has a selection of NBR articles in full text from 1993 with a 6-month delay in availability.
From September 2012, attached to the articles are their PDF versions of each page.
There is also an index to NBR articles from 1985-1992.
In Newzext NBR is listed under the option "Magazines or option "Combined search"
Searching for NBR articles within selected dates
Searching NBR for articled on a topic