To cite the R package 'mixer':

Jean-Jacques Daudin, Franck Picard and Stephane Robin (2008), A mixture model for random graphs. Statistics and Computing, 18, 2, 151-171.

Hugo Zanghi, Christophe Ambroise and Vincent Miele (2008), Fast online graph clustering via Erdös-Rényi mixture. Pattern Recognition, 41, 3592-3599.

Hugo Zanghi, Franck Picard, Vincent Miele and Christophe Ambroise (2010), Strategies for online inference of model-based clustering in large and growing networks. Annals of Applied Statistics, 4, 2, 687-714.

Pierre Latouche, Etienne Birmelé and Christophe Ambroise (2012), Variational Bayesian inference and complexity control for stochastic block models. Statistical Modelling, SAGE Publications, 12, 1, 93-115.

Corresponding BibTeX entries:

  @Article{,
    title = {A mixture model for random graphs},
    journal = {Statistics and Computing},
    volume = {18},
    number = {2},
    pages = {151-171},
    year = {2008},
    author = {Jean-Jacques Daudin and Franck Picard and Stephane
      Robin},
  }
  @Article{,
    title = {Fast online graph clustering via Erdos-Renyi mixture.},
    journal = {Pattern Recognition},
    volume = {41},
    pages = {3592-3599},
    year = {2008},
    author = {Hugo Zanghi and Christophe Ambroise and Vincent Miele},
  }
  @Article{,
    title = {Strategies for online inference of model-based clustering
      in large and growing networks},
    year = {2010},
    journal = {Annals of Applied Statistics},
    volume = {4},
    number = {2},
    pages = {687-714},
    author = {Hugo Zanghi and Franck Picard and Vincent Miele and
      Christophe Ambroise},
  }
  @Article{,
    title = {Variational Bayesian inference and complexity control for
      stochastic block models},
    journal = {Statistical Modelling, SAGE Publications},
    year = {2012},
    volume = {12},
    number = {1},
    pages = {93-115},
    author = {Pierre Latouche and Etienne Birmelé and Christophe
      Ambroise},
  }