| #21 | Building Research Journal. -- Bratislava : Slovak Academic Press, 1994-. -- ISSN 1335-8863 |
| #22 | Byte. -- New York : McGraw-Hill, 1975-1999. -- ISSN 0360-5280 |
| #23 | CAD user. -- Beckenham : Compudraft, 1988-. -- ISSN 0959-6259 |
| #24 | Can newsletter : hardware, software, tools, engineering. -- Nürnberg : PZ Marketing |
| #25 | Central European journal for operations research and economics. -- Bratislava : University of Economics, 1992-1998. -- ISSN 1335-1443 |
| #26 | CIM-Management. -- Berlin : Gesellschaft für Industrielle Informationstechnik und Organisation, 1985-. -- ISSN 0179-2679 |
| #27 | Circuit world : journal of the Institute of circuit technology. Technical journal of the printed circuit and interconnection federation. -- Bingley : Emerald, 1974-. -- ISSN 0305-6120 print. -- ISSN 1758-602X online |
| #28 | CIRP annals. -- Bern : Hallwag, 1975-. -- ISSN 0007-8506 print. -- ISSN 1726-0604 online |
| #29 | Communications of the ACM. -- New York : Association for Computing Machinery, 1959-. -- ISSN 0001-0782 print. -- ISSN 1557-7317 online |
| #30 | Comparative studies in society and history. -- London : Cambridge University Press, 1958-. -- ISSN 0010-4175 print. -- ISSN 1475-2999 online |