@Article{ 
  garzap07,
  author = { Gargiulo, Giuliano and Zappale, Elvira },
  title = {  A Remark on the Junction in a Thin Multi-Domain: the Non Convex Case  },
  journal = { NONLINEAR DIFFERENTIAL EQUATIONS AND APPLICATIONS. },
  year = { 2007 },
  volume = { 14 },
  pages = { 699-728 },
  URL = { http://cvgmt.sns.it/paper/190/ },
  note = { cvgmt preprint}
}