How does 773 field work? How to represent journals?

[Ferran Jorba <Ferran.Jorba@xxxxxx>]

Hi CERN people,

I'm investigating a couple of related issues, that I haven't
been able to solve myself reading the documentation and the
examples, both at the demo-site + demo-records and in the
CERN cdsweb site.

First is how to 773 field works.  It is not documented in the Howto
MARC document (http://cdsware.cern.ch:8000/admin/howto/marc.html).
However, I've seen in the CERN cdsweb site, for example:
http://cdsweb.cern.ch/search.py?recid=749922&of=hm
that subfields are not the same that the Library of Congress
(http://www.loc.gov/marc/bibliographic/ecbdlink.html#mrcb773)

 CDSware               LC
 $c ISSN               [nonexistant]
 $n Number             Note
 $p Journal title      Abbreviated title
 $v Volume             [nonexistant]
 $y year               CODEN

[BTW, I think that it is dangerous in the long run to depart from
official standards.]

I've upload some records following your conventions but they don't
show the journal title (my 773 $p, $y, etc) as in your official site.
What am I missing?

The second issue is how to represent a journal in the traditional
browse view of Journal title, something like (for example)
http://www.kluweronline.com/issn/0011-4626/

You already have something very limited at
http://cdsweb.cern.ch/?c=Periodicals&as=0&ln=en
But it only links at external sites, for example:
http://cdsweb.cern.ch/search.py?sysno=002177754cer

I was thinking that, if I can get 773 work, I could do something
like periodically download the records for each journal, create
the issues, volumes and so, and re-load the holdings for each
journal, linking to the articles.  But I cannot go on until I
grasp how 773 works in CDSware.

Thanks,

Ferran