Fonte:
http://info.portaldasfinancas.gov.pt/NR/rdonlyres/1599951F-12D4-49EF-9696-E992F425C591/0/IVE1777_Art011CIMT_Art017CIMT_Verba005TGIS_IMT-SELO.pdf
http://info.portaldasfinancas.gov.pt/NR/rdonlyres/717D2768-FE98-4E45-8E41-BD1643F68EEA/0/IVE1703_Art060CIS_Verba002TGIS_SELO.pdf
http://info.portaldasfinancas.gov.pt/NR/rdonlyres/3B67BF01-CFB6-4A88-96D0-6EE7A0F2FECD/0/IVE1657_Art002_CIMT_IMT_.pdf
http://info.portaldasfinancas.gov.pt/NR/rdonlyres/18083FA7-4CF1-4BAE-B5A7-68F9F480EDAB/0/IVE1997_Art002-1-a__Art003-1-2_Art004-3_CIUC_IUC.pdf
