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2. S. Mandelstam, Lecture at American Physical Society Meeting, Washington DC, April 1977.
3. V. Gribov, Lecture at 12th Winter School, Leningrad, 1977.
4. R. Jackiw, I. Muzinich and C. Rebbi, Phys. Rev. D 17, 1576 (1978) For a related investigation, see Reg. 5; difficulties with the Coulomb gauge were also noted by the authors of Ref. 6.
5. M. Ademollo, E. Napolitano and S. Sciuto, CERN preprint.