| #491 | Tesla elektronik. -- Česká republika : Praha : Tesla, 1970-1980. -- ISSN 0322-7782 |
| #492 | Test and measurement world : The magazine for quality in electronics. -- Boston : Interfield Pub., 1981-. -- ISSN 0744-1657 |
| #493 | The electronic engineer. -- Spojené státy americké : Philadelphia : Chilton Co.,, 1966-1973. -- ISSN 0013-4899 |
| #494 | The Institute. -- Spojené státy americké : New York : Institute of Electrical and Electronics Engineers, 1977- |
| #495 | The Proceedings of the Institution of electronics. -- Velká Británie : London : Forum publ,, 1953-1958 |
| #496 | The Wireless engineer. -- Velká Británie : London : Iliffe & Sons, 1936-1956. -- ISSN 0268-6465 |
| #497 | Titel von Veröffentlichungen über Analog- und Ziffernrechner und ihre Anwendungen. -- Německo : Wiesbaden : F. Steiner, 1962-1966 |
| #498 | Tokyo Kōgyō Daigaku Seimitsu Kōgaku Kenkyūjo yōran. -- Tokyo : Precision and Intelligence Laboratory, 1956-2003. -- ISSN 1343-8719 |
| #499 | Transactions of the American Institute of Electrical Engineers, Part 1, Communications and Electronics. -- New York : American Institute of Electrical Engineers, 1952-1962. -- ISSN 0097-2452 |
| #500 | Transactions of the American Institute of Electrical Engineers, Part 2, Applications and Industry. -- New York : American Institute of Electrical Engineers, 1952-1962. -- ISSN 0097-2185 |