GACoS  Gateway to Academic Contents SystemUTokyo logo

GACoS is renewed as Literacy on the University of Tokyo Library System.
Thank you for using GACoS for a long time.
GACoS will no longer be updated, so please use Literacy.

GACoS is a gateway to search for documents and other academic information over the Internet.
It can be used to support your research activity.
About "Access from off-campus Service" is on the bottom right.

Publisher's response to new coronavirus infections

For the most recent news, please refer to the Japanese page.
Literacy website is now open (2021.8.11)NEW
The Trial of "Quan Guo Bao Kan Suo Yin (CNBKSY) 全国報刊索引" (until October 5, 2021)NEW
Renewal of GACoS ※Latest update 8/4 (2021.6.22)NEW
Old site of the SSL-VPN Gateway service will be closed on August 31, 2021. (2021.7.26)NEW
Web of Science is not available via the Authentication GW/SSL-VPN Gateway Service (2021.7.12)NEW
Previous informations

Twitter @gacos_utokyo
Find Database
This portal site features links to the databases available at the University of Tokyo, and to the Internet sites providing valuable scientific information.
Keyword Search
Enter only 1 word in the search box.

Source Type Subject
Source Language
Access to full text
Linked full text
Campus Only / Free Access

Browse by Database Name

Quick Link to Database
*means "Campus Only"
TREE (UTokyo REsource Explorer)*
except Internet Explorer
E-journal & E-book Portal*
CiNii Articles
CiNii Books
Web of Science Core Collection*
Google Scholar
JapanKnowledge Lib*
New RefWorks | Legacy RefWorks
Access from off-campus
About "SSL-VPN Gateway Service" or "Authentication Gateway Service"
SSL-VPN Gateway sign-in page
Authentication Gateway Service
Available online services from off-campus (campus only site)

E-resources : Instructions and Directions for Use
Online services available from outside the campus
Using computers at the University of Tokyo
Connecting your own PC to the network
How to use RefWorks
How to use Mendeley
How to use EndNote basic
The University of Tokyo
Information Technology Center
Educational Campuswide Computing System (ECCS)
UTokyo Library System
Academic Information Team

Copyright(C)2005 Academic Information Literacy Section, Information Technology Group, the University of Tokyo All Rights Reserved
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