1. T. K. Gujadhur, J. H. R. Migneron andK. J. M. Moriarty:The U 6,6 ⊗O 3,1 peripheral absorption model and production of 2 + and 1 + mesons, I;The U 6,6 ⊗O 3,1 peripheral absorption model and production of the 5/2 + nucleon resonance, II, Imperial College, London, preprints ICTP/70/30 and ICTP/70/31.
2. H. D. D. Watson:Phys. Rev. Lett.,17, 72 (1965);D. G. Fincham, J. H. R. Migneron andK. J. M. Moriarty:Nuovo Cimento,67 A, 588 (1968);F. D. Gault, B. J. Hartley, J. H. R. Migneron andK. J. M. Moriarty:Nuovo Cimento,62 A, 269 (1969);J. H. R. Migneron andH. D. D. Watson:Phys. Rev.,166, 1654 (1968);J. H. R. Migneron:Phys. Rev. Lett.,19, 424 (1965);18, 978 (1968);H. D. D. Watson, J. H. R. Migneron, K. Moriarty, D. G. Fincham andA. P. Hunt:Nuovo Cimento,62 A, 127 (1969);D. G. Fincham, A. P. Hunt, J. H. R. Migneron andK. Moriarty:Nucl. Phys.,13 B, 161 (1969).
3. J. D. Jackson:Rev. Mod. Phys.,37, 484 (1965); this paper has a large number of references on the absorption model.L. Durand andT. Chiu:Phys. Rev.,137, B 1530 (1965);H. Högaasen andJ. Högaasen:Nuovo Cimento,39, 941 (1965);A. Dar: inHigh-Energy Physics and Nuclear Structure. edited byO. Alexander (Amsterdam, 1967);J. D. Jackson, J. T. Donohue, K. Gottfried, R. Keyser andB. E. Y. Svensson:Phys. Rev.,139, B 428 (1965).
4. M. Gell-Mann:Phys. Rev. Lett.,14, 77 (1965);P. G. O. Freund andB. W. Lee:Phys. Rev. Lett.,13, 592 (1964);R. Gatto, L. Maiani andG. Preparata:Phys. Rev.,140, B 1549 (1965);142, 1135 (1965);B. T. Feld:Coral Gables Conference, Florida, January 1969.
5. See the comprehensive review byR. Delbourgo, M. A. Rashid, A. Salam andJ. Strathdee: inHigh-Energy Physics and Elementary Particles (Vienna, 1965), p. 455;A. Salam, R. Delbourgo andJ. Strathdee:Proc. Roy. Soc., A284, 146 (1965);