T-duality and Actions for Non-BPS D-branes
  We employ T-duality to restrict the tachyon dependence of effective actions for non-BPS D-branes. For the Born-Infeld part the criteria of T-duality and supersymmetry are satisfied by a simple extension of the D-brane Born-Infeld action. 
E.A. Bergshoeff, M. de Roo, T.C. de Wit, E. Eyras and S. Panda