@workingPaper{BusemannOepenHinkelmanNeumannUszkoreit_1994, title={COSMA - multi-participant NL interaction for appointment scheduling}, author={Busemann, Stephan and Oepen, Stephan and Hinkelman, Elizabeth A. and Neumann, Günter and Uszkoreit, Hans}, doi={http://dx.doi.org/10.22028/D291-24955}, year={1994} }