@Article{ 
  tobcam,
  author = { De Lellis, Camillo and Tobias H. Colding,  },
  title = { The min--max construction of minimal surfaces },
  journal = { Surveys in differential geometry },
  year = { 2003 },
  volume = { 8 },
  pages = { 75-107 },
  URL = { http://cvgmt.sns.it/paper/357/ },
  note = { cvgmt preprint}
}