Bibviz is an automatic tool that enables to visualise co-authorship relations in a bibliography file. Starting from a bibliography file in BibTex format, the tool transforms it into a graph, where nodes represent authors and links the co-authorship relations. What you need is simply a clean installation of some python tools:
- biblio-py
- networkx
- matplotlib and my source code available on this page !
Take a look on this blog post for details: http://wiki.lahoud.fr/doku.php?id=bibliography_visualization
python bib-graph.py input_file.bib min_year max_year