這是相關Database介紹

* About Energy Citations Database (http://www.osti.gov/energycitations/about.jsp)

The Energy Citations Database (1948 – Present) was developed by the U.S. Department of Energy (DOE) Office of Scientific and Technical Information (OSTI) to improve access to Departmental and predecessor agency scientific and technical information (STI).
The Energy Citations Database (ECD) contains bibliographic records for energy and energy-related STI from the Department of Energy (DOE) and its predecessor agencies, the Energy Research & Development Administration (ERDA) and the Atomic Energy Commission (AEC). The Database provides access to DOE publicly available citations from 1948 through the present, with continued growth through regular updates.
Energy Citations includes bibliographic records of literature in disciplines of interest to DOE such as chemistry, physics, materials, environmental science, geology, engineering, mathematics, climatology, oceanography, computer science and related disciplines. It includes citations to report literature, conference papers, journal articles, books, dissertations, and patents.

* About Astrophysics Data System (ADS) (http://adswww.harvard.edu/)

The Astrophysics Data System (ADS) is a NASA-funded project which maintains four bibliographic databases containing more than 4.2 million records: Astronomy and Astrophysics, Instrumentation, Physics and Geophysics, and preprints in Astronomy.