This is Berkeley's main catalog, providing access to the Pathfinder collection of databases.
Guides to using GLADIS and Pathfinder:
http://www.lib.berkeley.edu/ find/ types/ electronic_resources.html
This page lists different types of online materials. Note the "Indexes and Abstracts" link, which leads to several valuable databases related to Chinese studies, including:
This site contains catalogs of archival collections at UC Berkeley, and affiliated institutions such as the Hoover Institution at Stanford University. For example, at the UCB Bancroft Library, materials related to Chao, Yuan-jen can be found in the Benjamin A. Bernstein Papers.