1. Alexander J. C. and Auchmuty J. F. G., Global bifurcation of Waves, Manuscripta Mathematica, 27, 159–166, (1979)
2. Auchmuty J. F. G., Bifurcating waves, Annals New York Academy of Sciences 316, 263–278, (1979)
3. Auchmuty J. F. G., Bifurcation analysis of reaction-diffusion equations v. rotating waves on a disc, in Fitzgibbon (ed), Partial Differential Equations and Dynamical Systems III (W. E. Pitman, Boston), 36–63, (1984)
4. Boldin B., Introducing a population into a steady community: the critical case, the center manifold, and the direction of bifurcation, SIAM J. Appl. Math., 66(4), 1424–1453, (2006)
5. Britton N. F., Reaction-diffusion equations and their applications to biology, Academic Press, Inc. [Harcourt Brace Jovanovich, Publishers], London (1986)