From iterated tilted algebras to cluster-tilted algebras
  In this paper the relationship between iterated tilted algebras and cluster-tilted algebras and relation-extensions is studied. In the Dynkin case, it is shown that the relationship is very strong and combinatorial. 
Michael Barot, Elsa Fern\'andez, Mar\'ia In\'es Platzeck, Nilda Isabel   Pratti and Sonia Trepode