Methods of Bifurcation Theory (Grundlehren der mathematischen Wissenschaften)
Spectral Analysis of Nonlinear Operators (Lecture Notes in Mathematics, 346)
Linear Elliptic Differential Systems and Eigenvalue Problems (Lecture Notes in Mathematics, 8)
Topics in Stability and Bifurcation Theory (Lecture Notes in Mathematics, 309)
Seminar on Functional Operators and Equations: Forschungsinstitut Für Mathematik, Eth, Zürich, October 1965 - July 1966 (Lecture Notes in Mathematics, 33)
Elementary Stability and Bifurcation Theory
Global Bifurcation of Periodic Solutions with Symmetry (Lecture Notes in Mathematics, 1309)
Bifurcation and Nonlinear Eigenvalue Problems: Proceedings, Universite de Paris XIII, Villetaneuse, France, October 2-4, 1978 (Lecture Notes in Mathematics, 782) (English and French Edition)
Bifurcations and Catastrophes Geometry of Solutions to Nonlinear Problems
The Hamiltonian Hopf Bifurcation (Lecture Notes in Mathematics, 1160)