To cite package ‘DEGraph’ in publications use:

  More power via graph-structured tests for differential expression of
  gene networks L. Jacob, P. Neuvial, and S. Dudoit Jun 2012 The Annals
  of Applied Statistics http://dx.doi.org/10.1214/11-AOAS528

A BibTeX entry for LaTeX users is

  @Article{,
    author = {Laurent Jacob and Pierre Neuvial and Sandrine Dudoit},
    title = {More power via graph-structured tests for differential expression of gene networks},
    year = {2012},
    month = {Jun},
    doi = {10.1214/11-AOAS528},
    fjournal = {The Annals of Applied Statistics},
    journal = {Ann. Appl. Stat.},
    number = {2},
    pages = {561--600},
    publisher = {The Institute of Mathematical Statistics},
    url = {http://dx.doi.org/10.1214/11-AOAS528},
    volume = {6},
  }