Telecommunication

AIP - American Institute of Physics

Number of E-Journals: 
20+

Wiley Online Library

Number of E-Books: 
3400+
Number of E-Journals: 
2000+

DOAJ - Directory of Open Access Journals

Number of E-Journals: 
15000+

Springer

Number of E-Books: 
11900+
Number of E-Journals: 
3000+

Optical Society of America

Number of E-Journals: 
24

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