@Article{ 
  mug04,
  author = { Mugnai, Dimitri },
  title = { A note on an exponential semilinear equation of the fourth order },
  journal = { Differential Integral Equations  },
  year = { 2004 },
  volume = { 17 },
  number = { 1--2 },
  pages = { 45-52 },
  URL = { http://cvgmt.sns.it/paper/1516/ },
  note = { cvgmt preprint}
}