@InProceedings{GhiNiRaZu-FroCoS-07,
   author = {Silvio Ghilardi and Enrica Nicolini and Silvio Ranise and Daniele Zucchelli},
    title = {Noetherianity and Combination Problems},
booktitle = {Proceedings of the 6th International Workshop on Frontiers of Combining Systems (FroCoS 2007)},
   editor = {Boris Konev and Frank Wolter},
     year = {2007},
   series = {Lecture Notes in Computer Science},
   volume = {4720},
    pages = {206--220},
  address = {Liverpool (UK)},
publisher = {Springer},
}