@Misc{ 
  mug02,
  author = { Mugnai, Dimitri },
  title = { Multiplicity of critical points in presence of a linking: application to a superlinear boundary value problem },
  journal = { NoDEA Nonlinear Differential Equations Appl. },
  year = { 2002 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/706/ },
  note = { cvgmt preprint}
}