Why would this be considered a single conference instance and not three instances of a conference?

In the examples, one is a conference that lasted a few days over the end of December and the beginning of January, and the other is a numbered conference ("19") with each instance's separate gatherings taking place within a year. Other numbers for the conference show the same pattern.  So one is bound as an instance by time and the other by its number. What binds the Conference on Real Ale meetings together as a single conference instance?

If the proceedings are being cataloged as a serial or set, the 111 would be just "Conference on Real Ale" without a qualifier (unless there's a conflict).

I'm not sure I understand the question.


On Fri, Oct 22, 2021 at 4:22 AM Stephen Arnold <[log in to unmask]> wrote:

Dear gurus and mages,


I can’t find good examples for a single conference which takes place in multiple locations and over several years (admittedly, an unusual situation).

Is the correct format to pair each date with its corresponding location something like this

Conference on Real Ale ǂd (2015 :ǂc Paris, France :ǂd 2016 :ǂc London, England :ǂd 2017 :ǂc Boston, Mass.)


Examples like n 2021010322 & no2020124510 seem wrong to me.

Thanks for any advice.


Best wishes,



Stephen Arnold​

Bibliographic Maintenance & Authority Control ​

Bodleian Libraries, Oxford 

tel. 01865-277026​



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