| #41 | CEIG-Berichte. -- Düsseldorf : Continental-Elektroindustrie-Gesellschaft., 1957-1958. -- ISSN 0340-1030 |
| #42 | Circuit news : electronics manufacturing. -- County Lane : Circuit News, 1984-. -- ISSN 1058-9317 |
| #43 | Communications society. -- New York : Communications Society of IEEE, 1973-1976. -- ISSN 0094-5579 print. -- ISSN 2331-463X online |
| #44 | Computers & electrical engineering. -- New York : Pergamon, 1973-. -- ISSN 0045-7906 print. -- ISSN 1879-0755 online |
| #45 | Conti-Elektro-Berichte. -- Frankfurt am Main : Continental-Elektroindustrie-Aktiengesellschaft., 1959-1969. -- ISSN 0069-9519 |
| #46 | Control engineering. -- Des Plaines : Cahners, 1954-. -- ISSN 0010-8049 |
| #47 | Current opinion in solid state & materials science. -- London : Current Science, 1996-. -- ISSN 1359-0286 |
| #48 | Česká energetika : Odborný časopis. -- Praha : Česká energetika, 2001-2004. -- ISSN 1213-4171 |
| #49 | Der Elektro-Monteur. -- SWITZERLAND : Aarau: H. Schwere, 1950-1976. -- ISSN 0046-1784 |
| #50 | Der Elektrotechniker. -- GERMANY : Wuppertal; Berlin: VDE-Verlag., 1949-1952. -- ISSN 0341-1354 |