Thank you very much - this is, what I wanted to achieve:

\def\emptyBibItemHead#1{}
\def\dostartbibitem[#1]{\startBibItem[title={#1},reference={#1}]}
\def\startbibitem{\dosingleempty\dostartbibitem}
\def\stopbibitem{\stopBibItem}

\definedescription[BibItem][
width=broad,margin=0pt,
indenting=no,indentnext=no,
headcommand=\emptyBibItemHead,]