2008 · Matthew C. Johnson, Magdalena Larfors · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 36
2010 · Anthony Aguirre, Matthew C. Johnson, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 33
2008 · Matthew C Johnson, Magdalena Larfors · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 29