Maximal Nine Dimensional Supergravity, General gaugings and the   Embedding Tensor
  We construct the most general maximal gauged/massive supergravity in $d=9$ dimensions and determine its extended field content by using the embedding tensor method. 
JJ. Fernandez-Melgarejo, T. Ortin, E. Torrente-Lujan
hep-th gr-qc math-ph math.MP