Merge question

Let's say that I have a file in a standard bibtex format, and I have 
another in, say, crossref format. How can I read those both into a 
single bsddb database?

Do I need two Database objects? Can I use a single Store for both? Do I 
need to use an Adaptor? What will the resulting bsddb schema be?

Thanks for any pointers,

-Doug

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