This application will return documents containing all the words specified in the search box. By default Synonym Replacement is enabled. This means that the system searches for the specified words as well as all their synonyms. This can be disabled for individual words by prefixing these words with '='. Phrase searching can be done by enclosing a sequence of words in double quotes. Within phrases, synonym replacement is always on, it cannot be disabled.
Advanced Search This is an experimental service provided by the ADS. As such it is subject to change in the future. If you have suggestions for improvements, please let us know at ads at cfa.harvard.edu.