References[1] J., Hale, Ordinary Differential Equations, Dover Publications, 2009.
[2] P. E., Hydon, Symmetry Methods for Differential Equations, Cambridge University Press, Cambridge, 2000.
[3] D. W., Jordan and P., Smith, Nonlinear Ordinary Differential Equations, Third Edition, Oxford University Press, Oxford, 1999.
[4] S. J., Chapman, J., Lottes and L. N., Trefethen, Four Bugs on a Rectangle, Proc. Roy. Soc. A, 467 (2011), 881–896.
[5] B. J., Schroers, Bogomol'nyi Solitons in a Gauged O(3) Sigma Model, Physics Letters B, 356 (1995), 291–296; also available as an electronic preprint at http://xxx.soton.ac.uk/abs/hepth/9506004.
[6] S. H., Strogatz, D. M., Abrams, A., McRobie, B., Eckhardt and E., Ott, Crowd Synchrony on the Millennium Bridge, Nature, 438 (2005), 43–44.
[7] M., Abrams, Two coupled oscillator models: The Millennium Bridge and the chimera state, PhD Dissertation, Cornell University, 2006.
[8] P., Dallard, A. J., Fitzpatrick, A., Flint, S. Le, Bourva, A., Low, R. M., R. Smith and M. Willford, The Millennium Bridge London: Problems and Solutions, The Structural Engineer, 79:22 (2001), 17–33.
[9] M., Atiyah and N., Hitchin, Geometry and Dynamics of Magnetic Monopoles, Princeton University Press, Princeton, 1988.
