Enllaços
[1] http://www.iclei-europe.org/index.php?id=969
[2] http://www.iclei-europe.org/index.php?id=989
[3] http://www.iclei-europe.org/index.php?id=1353
[4] http://www.iclei-europe.org/index.php?id=1217Bourough
[5] http://www.iclei-europe.org/index.php?id=1055
[6] http://www.iclei-europe.org/index.php?id=967
[7] http://www.iclei-europe.org/index.php?id=1289
[8] http://www.iclei-europe.org/index.php?id=987
[9] http://www.iclei-europe.org/index.php?id=1136
[10] http://www.diba.cat/
[11] mailto:leaaa001@leicester.gov.uk
[12] http://www.iclei-europe.org/index.php?id=986
[13] http://europa.eu.int/comm/environment/newprg/
[14] http://www.iclei.org/ecoprocura/relief/
[15] http://europa.eu.int/comm/environment/gpp/
[16] http://www.iclei-europe.org/fileadmin/user_upload/Procurement/LEAP/leap_print.pdf