1. R. Courant and D. Hilbert,Methods of Mathermatical Physics, Vol. II (Wiley, New York, 1966), pp. 760.
2. T. Waite, “The relativistic Helmholtz theorem and solitions,”,Phys. Essays
8, 60–70 (1995).
3. T. Waite, A. O., Barut, and J. R. Zeni, “The purely electromagnetic electron revisited,” in J. Dowling, ed.,Electron Theory and Quantum Electrodynamics (Nato ASI Series Volume) (Plenum, 1995).
4. A. M. Shaarawi, “An electromagnetic charge-current basis for the de Broglie double solution,” peprint, Dep. Eng. Phys. and Math., Cairo Univ., Egypt (1995).
5. J.-Y. Lu and J. F. Greenleaf, “Limited diffraction solutions to Maxwell and Schrödinger equations,” preprint Biodynamics Res. Unity, Mayo Clinic and Foundation, Rochester (1995), submitted for publication inJ. Phys. (Paris).