?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Giorgio&rft.aulast=Gnecco&rft.au=Gnecco%2C+Giorgio&rft.date=September+2013&rft.title=Learning+with+hard+constraints&rft.genre=proceeding