Links:
[1] https://portaljuridic.gencat.cat/eli/es-ct/dlg/2009/07/21/1
[2] http://coac.arquitectes.cat/ca/system/files/testos-legals/DL.pdf
[3] http://coac.arquitectes.cat/ca/javascript%3Ahistory.back%28%29
[4] http://coac.arquitectes.cat/ca/printpdf/print/629