@techreport{Bisogno2002,
author = {Bisogno, E.},
title= {UNECE data of possible interest to GGP Contextual Database},
year = {2002},
URL = {http://www.unece.org/fileadmin/DAM/pau/_docs/ggp/2003/GGP_2003_IWG002_BgDocCDBWG.pdf},
institution = {GGP Contextual database group: Activities and conclusions},
}