On the underlying gauge group structure of D = 11 supergravity

  title={On the underlying gauge group structure of D = 11 supergravity},
  author={Igor A. Bandos and Jos{\'e} A. de Azc{\'a}rraga and Jos{\'e} Manuel Izquierdo and Moises Picon and Oscar Varela},
  journal={Physics Letters B},

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