Nicoletta Del Buono (Department of Mathematics, University of Bari Aldo Moro) nicoletta.delbuono_at_uniba.it
Luciano Lopez (Department of Mathematics, University of Bari Aldo Moro) luciano.lopez_at_uniba.it
Cinzia Elia (Department of Mathematics, University of Bari Aldo Moro) cinzia.elia_at_uniba.it
Roberto Garrappa (Department of Mathematics, University of Bari Aldo Moro) roberto.garrappa_at_uniba.it
Giula Spaletta (Department of Mathematics, University of Bolgna) giulia.spaletta_at_unibo.itÂ