[1] Computational Complexity Theory, Juris Hartmanis (Ed.), AMS Short Course Lecture Notes: Introductory Survey Lectures, Proceedings of Symposia in Applied Mathematics, Volume 38, American Mathematical Society, 1989 (informationswissenschaftl. Veröffentlichungen)

[2] Communications Control Team (->"IEEE Standard Dictionary")

[3] Constant Current Transformer (->"IEEE Standard Dictionary")

[4] Computerized Communication Terminal

[5] Central Control Terminal

[6] Computer Compatibel Tape (->"NASA Acronym List").