1. The experiment group includes: M.P. Baker, R.L. Burman, M.D. Cooper. R.H. Heffner, R.J. Holt, D.M. Lee, D.J. Malbrough, T. Marks, B.M. Preedom, R.P. Redwine, J.E. Spencer, M. Yates-Williams, B. Zeidman.
2. C. Perrin, J.P. Albanese, R. Corfu, J.P. Egger, P. Gretillat, C. Lunke, J. Piffaretti, E. Schwarz, J. Jansen, B.M. Preedom, Phys. Lett. 69B, (1977), 301.
3. The experimental group includes: S. Iverson, H. Nann, A. Obst, K.K. Seth and H.A. Thiessen.
4. S.D. Drell, H.J. Lipkin and A. de Shalit, as cited by R.G. Parsons, J.S. Trefil and S.D. Drell, Phys. Rev. 138 (1965), B847.
5. T. Marks, M.P. Baker, R.L. Burman, M.D. Cooper, R.H. Heffner, R.J. Holt, D.M. Lee, D.J. Malbrough, B.M. Preedom, R.P. Redwine, J.E. Spencer and B. Zeidman, Phys. Rev. Lett. 38 (1977), 149.