\setupinteraction[state=start]

\usemodule[bib]
\setuppublications[refcommand=authoryears]
\setupcite[authoryears][compress=no]

\starttext

I can cite single authors, like this \cite[Balachandran2008], but when I
try to cite more together, it doesn't work
\cite[Balachandran2008,Borzi2002,Bose2007].
\blank
\placepublications

\stoptext