Organizational Interoperability in E-Government - Lessons from 77 European Good-Practice Cases. - Herbert Kubicek; Ralf Cimander; Hans Jochen Scholl (Springer, 2011)

Interoperability, Enterprise Architectures, and IT Governance in Government. - Hans Jochen Scholl; Herbert Kubicek; Ralf Cimander (EGOV, 2011)

Process integration, information sharing, and system interoperation in government: A comparative case analysis. - Hans Jochen Scholl; Herbert Kubicek; Ralf Cimander; Ralf Klischewski (Gov. Inf. Q., 2012)