Links:
[1] http://www.coac.arquitectes.cat/ca/nova-guia-de-criteri-aplicacio-de-la-condicio-basica-de-densitat-maxima-dhabitatges-disconformes
[2] http://hdl.handle.net/11703/126298
[3] http://www.coac.arquitectes.cat/ca/javascript%3Ahistory.back%281%29