1. Transversal Mapping and Flows;Abraham,1967
2. Bifurcation arising in the calculation of critical points via homotopy methods;Allgower,1984
3. Numerical Continuation Methods, an Introduction;Allgower,1990
4. Continuation and path following;Allgower;Acta Numerica,1993
5. Numerical path following;Allgower,1997