. Townsend, "The story of M," in The future of theoretical physics and cosmology, pp 484-493, Cambridge University Press (2002), eds. G. W. Gibbons, E.P.S. Shellard and S.J. Rankin; arXiv:hep-th/0205309. [140] D. V. Volkov and A. I. Pashnev, "Supersymmetric Lagrangian For Particles In Proper Time", Theor. Math