URBADOC
Urbadoc contains over 700,000 records relating to the literature of urban and social research, policy and practice in the countries of its five members (Spain, Germany, United Kingdom, France, and Italy) and elsewhere.
Urbadoc contains the bibliographic databases of members of the Urbandata Association.
These can be searched intuitively, and it is possible to search one database at a time as well as to search all databases.