G.S. Guralnik. The History of the Guralnik, Hagen and Kibble development of the Theory of Spontaneous Symmetry Breaking and Gauge Particles. International Journal of Modern Physics A. 2009, 24 (14): 2601–2627. Bibcode:2009IJMPA..24.2601G. arXiv:0907.3466. doi:10.1142/S0217751X09045431.
G.S. Guralnik. The History of the Guralnik, Hagen and Kibble development of the Theory of Spontaneous Symmetry Breaking and Gauge Particles. International Journal of Modern Physics A. 2009, 24 (14): 2601–2627. Bibcode:2009IJMPA..24.2601G. arXiv:0907.3466. doi:10.1142/S0217751X09045431.
G.S. Guralnik. The History of the Guralnik, Hagen and Kibble development of the Theory of Spontaneous Symmetry Breaking and Gauge Particles. International Journal of Modern Physics A. 2009, 24 (14): 2601–2627. Bibcode:2009IJMPA..24.2601G. arXiv:0907.3466. doi:10.1142/S0217751X09045431.