http://gaia.lbl.gov/hpbf/techno_c.htm
general article
literature review
http://www2.ebd.lth.se/avd%20ebd/main/personal/Project%20home%20page/main/publications/LITERATURE.pdf
http://www2.ebd.lth.se/avd%20ebd/main/personal/Project%20home%20page/main/DoubleSkinFacades.htm
built building monitoring
http://www-ext.lnec.pt/LNEC/DE/NOE/publicacoes/artenerg_hb2k6.pdf