Chiral Supergravitons Interacting with a 0-Brane N-Extended NSR   Super-Virasoro Group
  We continue the development of the actions, S_{AFF}, by examining the cases where there are N fermionic degrees of freedom associated with a 0-brane. These actions correspond to the interaction of the N-extended super Virasoro algebra with the supergraviton and the associated SO(N) gauge field that accompanies the supermultiplet. The superfield formalism is used throughout so that supersymmetry is explicit. 
A. Boveia, S. James Gates, Bjorg A. Larson, W.D. Linch, Dagny M.   Kimberly, J.A. Phillips, V.G.J. Rodgers