@unpublished{municipio2020sao,
  title = {São Paulo (Municipality) Sustainable Procurement Policy: Municipal Act 17260/2020}
  author = {Municipio de Sao Paulo},
  url = {http://legislacao.prefeitura.sp.gov.br/leis/lei-17260-de-8-de-janeiro-de-2019/consolidado},
  year = {2020}
}