(2011). Unified communications (UC) over IP multimedia subsystem (IMS) solutions and market/business analysis. [electronic resource].
Chicago-referens (17:e uppl.)Unified Communications (UC) over IP Multimedia Subsystem (IMS) Solutions and Market/business Analysis. [electronic Resource]. 2011.
MLA-referens (9:e uppl.)Unified Communications (UC) over IP Multimedia Subsystem (IMS) Solutions and Market/business Analysis. [electronic Resource]. 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.