%0 Journal Article %K Chief Information Officer %K CIO %K CIO Responsibilities %K CIO Roles %K Collaborative Network Organizations %K digital transformation %K governance %K IT capabilities %K IT services %K management %K Optimization %K Public Sector %B Information & Security: An International Journal %D 2019 %G eng %P 83-94 %T Implementation Hierarchy and CIO Organization in Bulgaria’s Public Administration %V 42 %8 2019 %& 83