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Mathscinet search (US master site)
mathsci [title] [-author name [-author2 name2] ] [-any text]
By default, searches in title. 
-author name   search for name in the author field
-author2 name  search for name in a second author field
-any text      search for text in the anywhere field.
EXAMPLES
mathsci physical applications
mathsci physical applications -author guo -author2 xu -any square well
mathsci -author xu -any square well
BUGS
This doesn't do anything sensible if you don't feed it arguments.