1. A. Arneodo andJ. Kubar-Andre:Nucl. Phys.,77 B, 309 (1974).
2. D. Drijard andS. Pokorski:Phys. Lett.,43 B, 509 (1973).
3. P. Grasserger andH. I. Miettinen:On the charge structure of high energy multiple production, CERN preprint TH. 1870 (June 1974).
4. P. Grassberger andH. I. Miettinen:Simple structure of charged neutral correlations, CERN preprint TH. 1896 (June 1974).
5. R. Baier andF. W. Bopp:On correlations between charged and neutral particles in a cluster model, preprint Bi-74/17 (June 1974).