@ARTICLE{Cesar2013,
  author = {Jean Cesar},
  title = {An amazing title},
  year = {2013},
  volume = {12},
  journal = {Nice Journal},
  comments = {A comment},
  keyword = {keyword1, keyword2}
}

@ARTICLE{Baltazar2013,
  author = {Jean Baltazar},
  title = {An amazing title},
  year = {2013},
  volume = {12},
  journal = {Nice Journal},
  comments = {A comment},
  keyword = {keyword1, keyword2}}

@ARTICLE{Aimar2013,
  author = {Jean Aimar},
  title = {An amazing title},
  year = {2013},
  volume = {12},
  journal = {Nice Journal},
  comments = {A comment},
  keyword = {keyword1, keyword2},
  month = "january"
}

@ARTICLE{Doute2013,
  author = {Jean Doute},
  title = {An amazing title},
  volume = {12},
  journal = {Nice Journal},
  comments = {A comment},
  keyword = {keyword1, keyword2},
  year = "2013"
}