Liliana Ardissono, University of Torino, Italy, liliana@di.unito.it,
Luciana Bordoni, ENEA, luciana.bordoni@enea.it
Cristina Gena, University of Torino, Italy, cgena@di.unito.it
Tsvi Kuflik, The University of Haifa, Israel,tsvikak@is.haifa.ac.il