BibReview is a software for managing bibliographic database. It has originally been developped for the IMIA Yearbook of Medical Informatics. It proposes avanced functions for literature reviews, but can also be used as a traditional bibliographic database manager.
BibReview can import references from PubMed, and export in BibTeX format. It can also cite reference in LyX.
You can install it by running :
python ./setup.py build python ./setup.py install # as root