Use Library Catalog to search for journals (both print and ejournals) that are owned by GT library. Journals are non-circulting items. However, you can photocopy them in the library (1st floor west, 10 cents per page) or scan them for free (scanners are also located on 1 west).
eJournals - What is ?
It links you to the articles that are available online. Please pay attention to the coverage information. Some journals are electronically available only for a certain period of time. And some journals may have an embargo period (means recent one year or 6 months is not available).