Special characters in key


#1

My original CSV data includes ä, ö, å, :, ), and ( characters in the field names. When I import the data into Couchbase server, the keys shall have names, which include the previous mentioned characters.
How can I make queries (either with view or with N1QL) based on the keys, which have these special characters?
Or is it impossible to make queries for these kind of keys?