Basic fermion masses and mixings in the E6 model

F. Gürset, P. Ramond andP. Sikivie:Phys. Lett.,60 B, 177 (1976);F. Gürsey: inMathematical Problems in Theoretical Physics, edited by H. Araki (Berlin, 1975), p. 189.

F. Gürset andP. Sikivie:Phys. Rev. Lett.,36, 775 (1976).

P. Ramond:Nucl. Phys.,110, 214 (1976) and Cal. Tech. Report no. 68-579.

H. Georgi, H. Quinn andS. Weinberg:Phys. Rev. Lett.,33, 451 (1974).

Ref. (3),andD. I. Jakanov: Leningrad Nuclear Physics Institute Report no. 303 (1977), unpublished.

F. Gürsey: inProceedings of the Fifth International Colloquium on Group Theoretical Methods in Physics (Berlin, 1977).

L. Michel andL. A. Radicati:Ann. of Phys.,66, 758 (1971).

S. Weinberg:Phys. Rev. Lett.,19, 1264 (1967);A. Salam: inElementary Particle Theory: Relativistic Groups and Analyticity (NobelSymposium no. 8), edited byN. Svaetholm (New York, N.Y., 1969).

J. Steinberger andD. Cundy, and the report ofM. Barnett (preprint SLAC-PUB-1961) given at the Budapest High-Energy Conference (1977).

S. L. Glashow andS. Weinberg:Phys. Rev. D,15, 1958 (1977);F. Paige, E. A. Paschos andT. L. Trueman:Phys. Rev. D,15, 3416 (1977).