The key to this is the ISSN-L which is a linking field in each ISSN record
that provides the equivalent of a family name for the print, electronic
and other formats of a serial.
Over the past 5 or more years the ISSN Network has worked hard to increase
the assignment of ISSNs for serials
I find this figure very surprising. What appears to be the same search,
carried out this past March, came up with a (to me) much more credible
figure of 27,566.
Sally
Sally Morris
South House, The Street, Clapham, Worthing, West Sussex, UK BN13 3UU
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On 2012-08-03, at 4:53 PM, Sally Morris wrote:
I find this figure very surprising. What appears to be the same search,
carried out this past March, came up with a (to me) much more credible
figure of 27,566.
I found it surprising too. That's why I'm asking others who have
access to Ulrichs
You will find 8,004 Free, full text, quality controlled scientific
and scholarly journals, covering all subjects and many languages
in DOAJ and nearly 36.000 in Elektronische Zeitschriftenbibliothek and
my own list covering humanities and social sciences mostly,
more than 16.000. Ulrich is not the
The unexpectedly high figure is due to Ulrich's counting the print version and
the electronic version of a journal title as separate journals.
Example (using a smaller dataset): a search for active journals which are
academic/scholarly and peer reviewed/refereed filtered by Country of
The difference in the numbers is a matter of deduplicating different formats,
that is, the 55,311 includes separate records for print and electronic journals.
In December 2011 I ran an Ulrich's search, did some deduplication, and came up
with a total of 26,746 active, academic / scholarly peer
