How to find any value in any field:
Empty search box returns all records in the database.
How to find documents in a particular collection:

Narrow by collection:
 Articles
 Tesis

Click on a link below the search box to see and select subcollections such as Articles or Theses, or select/deselect the tick boxes next to a particular collection before doing the search.

Narrow by collection:
 Articles
 Tesis

For example, searching synchrotron documents in articles and theses collections.
more on how to wisely choose your search terms...
How to search for words/phrases (within titles, abstracts, etc):
Return records containing words defensa and propia.
Return records containing phrase 'defensa propia' in abstract.
more on word and phrase searches...
How to use truncation:
Return records containing words biotechnology, biotecnológico, biotecnologia, etc.
more on truncation...
How to use boolean operators:
or:
Return records containing both campanyes and publicitat.
Return records containing either campanyes or publicitat.
Return records containing campanyes but not publicitat.
more on Boolean queries...
How to use parentheses:
Return records containing either impostos or tributs, and legislacio or lleis. Nested parentheses are supported.
more on parentheses...
How to find documents from a certain period:
Type 2003 and select the year field.
Alternatively, type 'year:' followed by value.
You can enter specific year range.
more on span queries...
How to search for authors:
Some authors have unique names and their publications can be retrieved by searching for the surname in the any field field.
For better results, type surname comma first name and select the author field.
Sometimes authors are indexed with their initial.
Find papers by J. Egozcue published from 1998 until 2004.
more on author searches...
More information:
Special characters, regular expressions, fulltext searching, citation searching, and other capabilities are fully explained in the complete Search Guide.