Kumar, P., Boyanovsky, D., Vega, H. J. d., Holman, R., & Pisarski, R. D. (1998). Nonequilibrium evolution of a “tsunami,” a high multiplicity initial quantum state: Dynamical symmetry breaking. Physical Review D, 57(6), pp. 3653-3669. doi:10.1103/PhysRevD.57.3653

Kumar, Prem, Daniel Boyanovsky, Hector J. de Vega, Richard Holman, and Robert D. Pisarski. "Nonequilibrium Evolution of a “tsunami,” a High Multiplicity Initial Quantum State: Dynamical Symmetry Breaking." Physical Review D 57, no. 6 (1998): 3653-3669.

Kumar, Prem, et al. "Nonequilibrium Evolution of a “tsunami,” a High Multiplicity Initial Quantum State: Dynamical Symmetry Breaking." Physical Review D 57.6 (1998): 3653-3669.