SOME PROBLEMS FOR SOBOLEV SPACES ON THE HALF-LINE Статья Kalyabin G.A. Proceedings of the Steklov Institute of Mathematics. Том 255. 2006. С. 150-158
SOLVABILITY CONDITIONS FOR NONLINEAR EQUATIONS ON A CONE IN A NEIGHBORHOOD OF AN ANORMAL POINT Статья Arutyunov A.V. Proceedings of the Steklov Institute of Mathematics. 2005.
SOME ESTIMATES OF THE REACHABLE SET FOR THE CONTROLLED VAN DER POL EQUATION Статья Nikolʹskii M.S., Aboubacar Moussa Proceedings of the Steklov Institute of Mathematics. 2000.