Allgower, Eugene L.; Georg, Kurt Introduction to numerical continuation methods. Reprint of the 1990 edition [Springer-Verlag, Berlin; MR1059455 (92a:65165)]. Classics in Applied Mathematics, 45. Society for Industrial and Applied Mathematics (SIAM), Philadelphia, PA, 2003. xxvi+388 pp. ISBN0-89871-544-XMR2001018