| Amann, H. Periodic solutions of semilinear parabolic equations |
| Brézis, H., and Browder, F. E. Linear maximal monotone operators and singular nonlinear integral equations of Hammerstein type |
| Cesari, L. Nonlinear problems across a point of resonance for non-self-adjoint systems |
| Cronin, J. Branching of periodic solutions of nonautonomous systems |
| Hale, J. K. Restricted generic bifurcation |
| Hess, P. On a second-order nonlinear elliptic boundary value problem |
| Kannan, R. Tikhonov regularization and nonlinear problems at resonance |
| The eigenvalue problem for variational inequalities and a new version of the Ljusternik-Schnirelmann theory |
| Mawhin, J. Nonlinear boundary value problems for ordinary differential equations |
| Rabinowitz, P. H. Some minimax theorems and applications to nonlinear partial differential equations |
| Sather, D. Branching and stability for nonlinear gradient operators |
| Sattinger, D. H. Recent progress in bifurcation theory |
| Vainberg, M. M. On the subgradient of convex functionals |
| Weinberger, H. F. On the stability of bifurcating solutions |
| Amann, H. Periodic solutions of semilinear parabolic equations |
| Brézis, H., and Browder, F. E. Linear maximal monotone operators and singular nonlinear integral equations of Hammerstein type |
| Cesari, L. Nonlinear problems across a point of resonance for non-self-adjoint systems |
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