2007 · Konstantinos Tzirakis, William H. Kinney · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 70
2008 · William H. Kinney, Konstantinos Tzirakis · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 65