Orientation and the Leray-Schauder Theory for Fully Nonlinear Elliptic Boundary Value Problems 1993 · ENGLISH · DJVU View details →
Orientation and the Leray-Schauder Theory for Fully Nonlinear Elliptic Boundary Value Problems 1993 · ENGLISH · PDF View details →
Topological methods for ordinary differential equations: lectures given at the 1st session of the Centro internazionale matematico estivo 1993 · ENGLISH · DJVU View details →