@techreport{direction2019rapport,
  title = {Rapport de gestion SiL, 2019}
  author = {Direction des Services Industriels Lausannois
Ville de Lausanne},
  url = {https://www.lausanne.ch/officiel/municipalite/rapports-de-gestion/rapport-gestion-2019.html},
  year = {2019}
}