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Cavaglia, A. and Fring, A. (2012). PT-symmetrically deformed shock waves. Journal of Physics A: Mathematical and Theoretical, 45(44), p. 444010. doi: 10.1088/1751-8113/45/44/444010
Cavaglia, A., Fring, A. and Bagchi, B. (2011). PT-symmetry breaking in complex nonlinear wave equations and their deformations. Journal of Physics A: Mathematical and Theoretical, 44(32), p. 325201. doi: 10.1088/1751-8113/44/32/325201