| #301 | Signal : AFCEA'S international journal of communications, intelligence... -- Fairfax : The Armed Forces Comm. and Electronics Assoc., 1950-. -- ISSN 0037-4938 |
| #302 | Signal + Draht : Eisenbahntechnische Fachzeitschrift für Information und Kommunikation. -- Hamburg : DVV Media Group, 1943-. -- ISSN 0037-4997 |
| #303 | Signal processing. Image communication. -- Amsterdam : Elsevier, 1989-. -- ISSN 0923-5965 print. -- ISSN 1879-2677 online |
| #304 | Slaboproudý obzor. -- Praha : Československá sekce The Institute and Electronics Engineers, 1936-. -- ISSN 0037-668X |
| #305 | Somos : časopis pro zaměstnance společnosti Telefónica 02 Czech Republic. -- Praha : Telefónica O2 Czech Republic, 2011- |
| #306 | Space communications : an international journal. -- Amsterdam : Elsevier, 1989-. -- ISSN 0924-8625 print. -- ISSN 1875-9211 online |
| #307 | Space & communications. -- Wokingham : Parker Publications, 1996-. -- ISSN 1366-4727 |
| #308 | Stacks. -- San Francisco : Miller Freeman, 1993-. -- ISSN 1070-8596 |
| #309 | Stereoplay. -- Stuttgart : Vereinigte Motor-Verlage, 1979-. -- ISSN 0172-388X |
| #310 | Students' quarterly journal. -- London : Institution of Electrical Engineers, 1930-1972. -- ISSN 0039-2871 print. -- ISSN 2053-7875 online |