1.		Functional specification and description language (SDL) : criteria for using formal description techniques (FDTs): recommendation Z.100 and annexes A, B, C and E, recommendation Z.110 / International Telecommunications Union Data Publicação: 1989 Tema: UIT-União Internacional das Telecomunicações
2.		Telematic, data transmission and teleconference services operations and quality of service : recommendations F.160 - F.353, F.600, F.601, F.710 - F.730 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
3.		Telegraph and mobile services operations and quality of service : recommendations F.1 - F.140 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
4.		General characteristics of international telephone connections and circuits : recommendations G.100 - G.181 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
5.		Integrated services digital network (ISDN) : general structure and service capabilities: recommendations I.110 - I.257 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
6.		Maintenance of international telegraph, phototelegraph and leased circuits : maintenance of the international public telephone network: maintenance of maritime satellite and data transmission systems: recommendations M.800 - M.1375 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
7.		General recommendations on telephone switching and signalling : functions and information flows for service in the ISDN: supplements: recommendations Q.1- Q.118 bis / International Telecommunication Union Data Publicação: 1989 Tema: Vária
8.		Annex F.1 to recommendation Z.100 : SDL formal definition: introduction/International Telecommunication Union Data Publicação: 1989 Tema: Vária
9.		Annex F.2 to recommendation Z.100 : SDL formal definition: static semantics/International Telecommunication Union Data Publicação: 1989 Tema: Vária
10.		Annex F.3 to recommendation Z.100 : SDL formal definition: dynamic semantics/International Telecommunication Union Data Publicação: 1989 Tema: Vária
11.		CCITT high level language (CHILL) : international standard ISO/IEC 9496: recommendation Z.200/International Telecommunication Union Data Publicação: 1989 Tema: Vária
12.		Man-machine language (MML) : recommendation Z.301 - Z.341/International Telecommunication Union Data Publicação: 1989 Tema: Vária