<https://cbg.org.br/arquivos/carta-mensal-no-87-out-nov-dez-2007-e-jan-2008#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://cbg.org.br/arquivos/carta-mensal-no-87-out-nov-dez-2007-e-jan-2008>