@article{OPUS4-10531,
  title     = {Lettres de Maurice Ravel {\`a} H{\´e}l{\`e}ne Kahn-Casella et {\`a} Alfredo Casella},
  journal   = {Cahiers Maurice Ravel},
  volume    = {1},
  pages     = {57 -- 110},
  year      = {2008},
}