Hi Marco,
I had the very same problem. We use Reference Manager 10, and I was not able to convert the files.
Some time ago, I also found the machichan-Site, but I did not manage to get it working.
In the end, I found a solution which worked quite well:
http://www.potse.nl/software/bibfrob/HOWTO/RM-to-BibTeX-HOWTO I only had to try out several of these bibtex.os files from that page until I found one which worked with my version of the Reference Manager.
To the bibtex.os you can also add additional fields to export to bibtex.
The only point is, that my .bib-files are about 2,4MBs big. For that reason I have to split the Reference Manager database in three parts before exporting them.
But in that context, I've got another question:
I've different custom fields in my reference manager and can export them to bibtex by adding the neccessary strings manually to the output style. So far, so good.
But I'd also like to have one of these custom fields in my Joomla-Bibtex-output.
I installed Joomla on our Universities' intranet and I'd like to offer the pdf files of our references to download for my students. The filenames contain our internal repository number (e.g. 08-0573.pdf).
So I'd like to have another column in my joomla-bibtex-output table in the frontend (e.g. pdfs or something like that) that the students can see the actual filename of the references and download it from our docman-download section.
Is there any possibility to add columns manually?
Rossi