Limiting search string in URLs

["Alfred Kraemer" <akraemer@xxxxxxxxxx>]

Here is my dilemma:
I remember that someone on this list - several months ago - pointed out a
way to limit what is matched when search parameters are included in a URL -
but I don't remember how it was done for the Webpac.

Perhaps those of you who saw or posted the message could refresh my memory.

The answer -if I recall the gist of the thread correctly- would allow me to
change the following so that it would only retrieve
the record with that ISSN and not the record with an ISBN like ( 0306452219)
which matches the search string but is longer.

http://ils.lib.mcw.edu/search/i?SEARCH=0306-4522

Thanks

Alfred Kraemer
Head, Technical Services
Medical College of Wisconsin Libraries
8701 Watertown Plank Road
Milwaukee, WI 53226

Phone: 414-456-4273
E-Mail: akraemer@xxxxxxxxxx


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