Last week I attended the JFPC 2011. I was very happy to meet some people I haven't met for a long time ago (more than 15 years!). Philippe Vismare presented a nice study about common subgraphs identification.
Philippe and I were in the same office when we were phD students. I also studied the common subgraphs problem during my PhD. At JFPC, I also discussed with some people about some stuff that I wrote in my thesis and people complained because my thesis is no longer available. Thus, I decided to scan it and to put it online. You can find it one my webpage (be careful it is a 75MB pdf):
Unfortunately it is in french...
I hope that this document will be more cited now :-)