Berlin: Springer, 2011. - 242 p.
Nonlinear Eigenvalue Problems in Ordered Banach Spaces
Branching Phenomena in Fluid Dynamics and Chemical Reaction-Diffusion Theory
The Theory of Closed Geodesics
Variational Methods for Nonlinear Eigenvalue Problems
Existence of Solutions to the Hartree-Fock Equations
Positive Solutions of Nonlinear Eigenvalue Problems