http://www.controappuntoblog.org/2013/06/26/claudio-abbado-conductor-ravel-claudio-abbado-sul-podio-del-maggio-musicale-fiorentino-auguri/
http://www.controappuntoblog.org/2013/06/26/fidelio-claudio-abbado-conducts-the-lucerne-festival-orchestra-l-v-beethoven-%E2%80%93-opera-completa/