1992 · Alon E. Faraggi, John S. Hagelin, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 55
1993 · S. Kelley, Jorge L. Lopez, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 37