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Combining
search terms using Boolean Operators
The
operators AND,
OR, and NOT can be used to combine individual search terms
or phrases with each other within one input field or in
different
input fields.
|
AND |
Finds documents which all contain the terms joined by AND |
|
OR |
Finds documents which contain at least one of the terms joined by OR |
|
NOT |
Finds documents which contain the term preceding NOT but which do not contain the term following NOT |
Combining search
terms
within an
input
field
Both
individual words and phrases can be combined using AND, OR and NOT.
When
several terms are entered into an input field without using an operator,
the search automatically combines the terms with AND.
Please
Note: AND, OR and NOT must be entered in English
and in capital letters.
Only one entry at a time can be used in the input field of the search category
Previous Searches. Therefore, in order to combine a number of previous search
queries with AND, OR, or NOT, it is necessary to use the same number of input
fields.
Combining
input fields
In
order to combine different search fields choose either AND, OR, or NOT from the
drop down menu situated in front of the search category. The default setting is
AND.
Examples:
All Contributors:
"Tzara Tristan"
AND Contribution Title: "Manifeste Dada"
Result:
Contribution by Tristan Tzara with this title
Publication
Year:
1912 OR
1913
Results:
Contributions published in 1912 or 1913 in all publications.
Contribution
Title:
Künste NOT Akademie
Results:
Contribution titles containing the term Künste but
not the term Akademie.
Full Text:
krieg
AND
All Contributors: "Pfemfert
Franz"
Results: Contributions by Pfemfert, containing
the term Krieg
Genre:
Photographie
AND Publication Year: <1916
Results: Contributions
published before 1916 which belong to the genre photography.
Title:
"russische Revolution" OR "russischen Revolution"
Results: Contributions about the russion revolution, as stated in the title.
Please note: The search can also be carried out with wildcard characters:
"russische* revolution"
When several words are enclosed in quotation marks, only documents
containing those terms in the order in which they were entered are found.
Naturally, phrases can also be combined using the Boolean operators AND,
OR and NOT – see the examples
above.
Examples:
Contributor:
"Pfemfert Franz“
Results:
Contributions by Franz Pfemfert are found.
Contribution
Title:
"An Anna Blume“
Results:
All works with titles containing these words in this sequence are found.