You can choose between a itemgroup where you have numbered entries:4. Dezember 2015 um 16:34
The same seems to be true for \at and \about.
Then how must I setup my "cite" to get the reference label of an item?
In my "manual bibliography" (as in http://wiki.contextgarden.net/Manual_Bibliography), I have
\definereferenceformat[cite][left={[},right={]},command=\at]
\startbibitem[Ramm 2015]
Ramm, Hraban: The Unsolved Question. Bishkek 2015.
\stopbibitem
And in my text I want to use \cite[Ramm 2015] to get a link to the entry shown as [Ramm 2015].