2006 · Elena Accomando, Alessandro Ballestrero, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 47
2007 · Elena Accomando, Alessandro Ballestrero, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 18