training and knowledge-sharing systems and other horizontal actions to support dissemination of expertise and knowledge on the approaches, methodologies and systems referred to above with a view to enhancing the skills and knowledge of staff involved in programme and project management,
Directive 2004/18/CE du Parlement européen et du Conseil du 31 mars 2004 portant coordination des procédures de passation des marchés publics de travaux, de fournitures et de services (JO L 134 du 30.4.2004, p. 114).