2007 · P. Urquijo, E. Barberio, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 87
2006 · F. Fang, T. E. Browder, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 28