@techreport{sig2018lassainissement,
  title = {L'assainissement des eaux usées à Genève}
  author = {SIG - Services Industriels Genevois},
  url = {https://ww2.sig-ge.ch/sites/default/files/inline-files/eaux_usees_2017_0.pdf},
  year = {2018}
}