| #41 | Circuits, systems, and signal processing. -- Cambridge : Birkhäuser Boston, 1982-. -- ISSN 0278-081X print. -- ISSN 1531-5878 online |
| #42 | Cogito : neue wege zum wissen der welt. -- Darmstadt : Hoppenstedt, 1985-2001. -- ISSN 0178-8728 |
| #43 | Communications engineer. -- Stevenage : IEE Publishing & Information Services, 2003-2008. -- ISSN 1479-8352 print. -- ISSN 1741-0452 online |
| #44 | Compel : the international journal for computation and mathematics in electrical and electronic engineering. -- Dun Laoghaire : Boole Press, 1982-. -- ISSN 0332-1649 |
| #45 | Computers & electronics. -- UNITED STATES : [New York, N.Y.] : [Ziff-Davis Pub. Co.],, 1982-1985. -- ISSN 0745-1458 |
| #46 | Connectivity : excellence in Connectivity Solutions by Huber-Suhner. -- Herisau : Huber+Suhner, 2008- |
| #47 | Connector specifier. -- Libertyville : IHS, 1994-. -- ISSN 1078-1528 |
| #48 | Control engineering. -- Des Plaines : Cahners, 1954-. -- ISSN 0010-8049 |
| #49 | Control systems magazine. -- New York : The Institute of Electrical and Electronics Engineers, 1980-1984. -- ISSN 0272-1708 |
| #50 | CQ : The RadioAmateur's Journal. -- Hicksville : CQ Communications, 1945-2014. -- ISSN 0007-893X |