Upper and lower case characters do not affect the search.

To eliminate the previous search completely, please click on the x on the right hand side of the search slot («Clear Quick Search»).

Search operators for the keyword search in the search slot:

cat dog

finds cat and dog (standard) (AND)

cat || dog

finds cat or dog (OR)


finds everything except for cat (NOT)


finds exactly this term , no word stem (inverted commas).

cat dog

finds both terms one after another und finds word stems as well, e.g. enDOGen (quotation marks).

“’cat dog’”

finds exactly those two terms one after another, no word stem (quotation mark followed by an inverted comma).

Search results can be refined with filters. Every catalogue has its own filters.

ETH Library’s Image Archiv Online offers courses on the topic "Research Images Online". The courses’ slides are freely available. 

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