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2. D. G. Coyne, W. R. Butler, G. Fang-Landau andJ. MacNaughton:Nucl.Phys.,32 B, 333 (1971);J. Keyne, D. M. Binnie, J. Carb, N. C. Debenham, A. Duane, D. A. Garbutt, W. G. Jones andI. Siotis:Phys. Rev. D,14, 28 (1976).
3. W. T. Eadie, D. Drijard, F. E. James, M. Roos andB. Sadoulet:Statistical Methods in Experimental Physics (Amsterdam, 1971).
4. V. Chaloupka: private communication.
5. F. James andM. Roos:Computer Phys. Commun.,10, 343 (1976).