Off shell $\kappa$-symmetry of the superparticle and the spinning   superparticle
  The spinorial local world-line $\kappa$-symmetry of the covariant Brink-Schwarz formulation of the 4-$D$ superparticle is abelian in an off-shell phase-space formulation. The result is shown to generalize to the extended spinorial transformations of the spinning superparticle. 
P.D. Jarvis, J.W. van Holten and J. Kowalski-Glikman