1. P. W. Anderson, Survey of theories of spin glasses, inAmorphous Magnetism II, R. A. Levy and R. Hasegawa, eds. (Plenum Press, New York, 1977).
2. G. Toulouse, Frustration and disorder in statistical mechanics: spin glasses in historical perspective, inHeidelberg Colloquium on Spin Glasses, J. L. van Hemmen and I. Morgenstern, eds. (Springer Verlag, Berlin, Heidelberg, New York, Tokyo 1983), and other papers in this volume.
3. K. H. Fischer,Phys. Status Solidi (b) 116:357 (1983).
4. R. N. Bhatt and A. P. Young,Phys. Rev. Lett. 54:340 (1985); A. T. Ogielski and I. Morgenstern,Phys. Rev. Lett. 54:428 (1985).
5. N. Sourlas,J. Phys. Lett. 45:L969 (1984).