P. B. Price, George Nichols, R. L. Fleischer et al.|Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields|1971
R. L. Fleischer, P. B. Price, H. R. Hart et al.|Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields|1971