Markus Fischer wrote:

I am not aware of an API that let's you synchronize holdings registration automatically. Intersting idea anyhow. But you may do an export of your holdings, so this may work in the other direction.

According to my information, an 'inbound' API was developed with support of Ex Libris in order to feed the system with holding information from Verde (the ERM solution by Ex Libris). Unfortunately, this API never got exposed to a wider audience and I'm not sure if it's still in use.

BTW: An overview of linking depth by publisher is available here: (in English ;).


For a subset of the EZB members (for all those also using the ZDB) its is even possible to get in addition the availability of their print holdings.

I am Switzerland based and the ZDB is not open to the world unfortunately.


But the EZB is open to any library in the world. Weak point is the UI has a german bias (e.g. comments), although there is an english UI. But you can live with that, specially if you create your own application using the API.


Am 17.02.2011 18:10, schrieb Jonathan Rochkind:
No documentation in English, huh? This is a very interesting service I
had not previously been aware of, indeed quite powerful. It's free for
libraries to register their own holdings with EZB? Even American libraries?

Does the API by chance cover that registration of holdings too, so
software could take holdings tracked in some internal database, and
register them with EZB automatically?


On 2/17/2011 11:43 AM, Markus Fischer wrote:
Linking is dependent on the request and the technical possibilities of
the targeted publisher. Very often on article level.

Were not possible on journal level.

The things the EZB can't do is resolve identifiers like PMIDs, DOIs,
SICI numbers. But you can do that easily by writing your own application
or you my application I did write for this purpose: (use SVN for best results).

The API of the services of the EZB/ZDB is located here:

You may extend that to article level (try another journal).

Result 0 => free accessible
Result 1 => partially free accessible (fuzziness because of a not
specific request, e.g. missing year)
Result 2 => licensed
Result 3 => partially licensed
Result 4 => not licensed
Result 5 => Journal found, but the year specified is outside of the
published range)
Result 10 => unknown

You'll find a german documentation here:

They state that you should contact the EZB/ZDB to register your sid
(Vendor-ID:Database-ID) if you want to use this service:


PS: the data of the EZB isn't available for download, as far as I know.
But the EZB is for sure one of the best things libraries ever have
achieved and maintain...

Am 17.02.2011 17:25, schrieb Ross Singer:
On Thu, Feb 17, 2011 at 11:16 AM, Jonathan Rochkind<>
Interesting, does their link resolver API do article-level links, or
journal title level links?

I/you/one could easily write a plugin for Umlaut for their API,
would be an
interesting exersize.
I think it would also be interesting to make the data available for
download/reuse, if possible.

On 2/17/2011 1:18 AM, Markus Fischer wrote:
The cheapest and best A to Z list i know is the german EZB:

This list is maintained by hunderds of libraries. You just mark those
journals you have licensed and that's it.

Not very widely known: they do also provide an API which you can
use as
a free linkresolver. There are free tools you can plug into this
API and
you've got your linkresolver.

The list is incredible accurate and you'll have almost no effort: any
change made by one library is valid for all.

Let me know if you need more information.

Markus Fischer

Am 16.02.2011 22:18, schrieb Michele DeSilva:
Hi Code4Lib-ers,

I want to chime in and say that I, too, enjoyed the streaming archive
from the conference.

I also have a question: my library has a horribly antiquated A to
Z list
of databases and online resources (it's based in Access). We'd
like to do
something that looks more modern and is far more user friendly. I
found a
great article in the Code4Lib journal (issue 12, by Danielle
Mario Bernado) about building a searchable A to Z list using
Drupal. I'm
also wondering what other institutions have done as far as in-house
solutions. I know there're products we could buy, but, like
everyone else,
we don't have much money at the moment.

Thanks for any info or advice!

Michele DeSilva
Central Oregon Community College Library
Emerging Technologies Librarian

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