> So there is no simple way to determine if this is a reference to a > journal article except through interpreting the URI?
Exactly. But this interpretation is unambiguous, so this is not a problem. This does not require more work than parsing an XML element <bqs:PubMed_id>, with the exception that you do not need to change your format each time you need to refer to another bibliographic resource, such as creating an element <bqs:ArXiv_id>. You just add an entry to MIRIAM database. I do not think there is anything simpler to determine it is a reference to a journal article. Whatever you decide, you will always need a lookup table somewhere that says "this metadata is a bibliographic reference". -- Nicolas LE NOVERE, Computational Neurobiology, EMBL-EBI, Wellcome-Trust Genome Campus, Hinxton, Cambridge, CB10 1SD, UK Tel: +44(0)1223494521, Fax: +44(0)1223494468, Mob: +44(0)7833147074 http://www.ebi.ac.uk/~lenov, AIM:nlenovere, MSN:[EMAIL PROTECTED] _______________________________________________ cellml-discussion mailing list cellml-discussion@cellml.org http://www.cellml.org/mailman/listinfo/cellml-discussion