DIGIPOLIS Shopt IT 2012 Belang van datastandaarden voor lokale besturen.
Ηλεκτρονική Διακυβέρνηση (εισήγηση ΕΚΔΔΑ 2010)
IDA Interchange of Data between Administrations A ‘bridge CA’ for Europe’s public administrations European Signatures vs Global Signatures EESSI, Rome,
