Statistical Mechanics of Community Detection.
Physical Review E, 74:016110, 2006.
Joerg Reichardt and Stefan Bornholdt.
[doi]  [BibTeX] 

Detecting fuzzy community structures in complex networks with a Potts model.
Physical Review Letters, 93:218701, 2004.
Joerg Reichardt and Stefan Bornholdt.
[doi]  [BibTeX] 

Scale-free topology of e-mail networks.
Physical Review E, 66, 2002.
Holger Ebel, Lutz-Ingo Mielsch and Stefan Bornholdt.
[doi]  [BibTeX]