@InProceedings {dps.ha92,
    author = {V. De Antonellis and B. Pernici and P. Samarati},
    editor = {{H.J.} Bullinger},
    booktitle = {Human Aspects in Computing: Design and Use of Interactive Systems and Information Management},
    title = {Designing Information Systems for Cooperating Agents},
    publisher = {Elsevier Science Publ.},
    pages = {1140-1144},
    year = {1991}
}