Yu. Klokov.
On some boundary value problem for
the fourth order ordinary differential equations (Russian).
Existence of a solution of some
boundary value problem with functional boundary condition (Russian)
On some third order boundary
value problems (Russian)
On non-existence of a maximal solution
under the 1-D conditions (Russian)
On solutions of the Li\'{e}nard type equation
On solutions of 6-th order linear differential
equations
Nonlinear spectra for two-parameter eigenvalue
problems
On Nonlinear Spectrum for some Nonlocal Boundary
Value Problem
I. Yermachenko and F. Sadyrbaev.
Multiple solutions for $\Phi$-Laplacian equations
with the Dirichlet boundary conditions