This option enables you to narrow down your search for documents and publications. Three criteria allow you to specify more precisely what you are looking for.

• Publication type: only displays documents and pages that are assigned to a particular publication type.
• Navigation structure: only displays documents and pages of a particular register of this website.
• Organisational unit: only displays documents and pages that are assigned to the relevant organisational unit at Empa.

You can also narrow down your search by specifying the publication date of the publication or document.

Please apply to the libraries for ordering EMPA-publications referred to on this website in case they are not orderable online.

^{The searches for publications are still generating unsatisfactory results at present. The list of publications is updated regularly.}

Operators to be applied in the «search terms» field

Enter one or several search terms separated by blanks. Our search engine will find all pages and documents (mostly PDF-Files) with words that begin with the search terms. By default the search engine applies an AND operation between the search terms. The search terms are not case sensitive.

Example: nano laser powder finds all articles with words that begin with nano AND laser AND powder

The search terms can be concatenated with the Booelan operators AND, AND NOT, OR (in capital letters) and with brackets. Exemple: reliability sensor (piezo OR optical).