@misc{federationnoneliste,
  title = {Liste des entreprises de constructions métalliques - Grand Lausanne}
  author = {Fédération vaudoise des entrepreneurs (FVE)},
  url = {http://www.fveconstruction.ch/companies/search?name=&categories=Construction+m%C3%A9tallique&category=&regions=&type=&region_id=2},
  year = {None}
}