Astrophysics Data System
The NASA Astrophyiscs Data System (also known as ADS, adswww, or adsabs) is an online database of all peer reviewed and some submitted astronomy articles. Abstracts are available for free online for all articles. Full scanned articles are availble in pdf format for older articles. New articles have links to electronic versions hosted at the journal's webpage, but these are typically available only by subscription (which most astronomy research facilities have).
See also: LANL Research Library
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