Local Theory of Nonlinear Analytic Ordinary Differential Equations (Lecture Notes in Mathematics, 702)
Asymptotic Analysis: From Theory to Application (Lecture Notes in Mathematics, 711)
Asymptotic Behavior of Monodromy: Singularly Perturbed Differential Equations on a Riemann Surface (Lecture Notes in Mathematics, 1502)
Equations Differentielles a Points Singuliers Reguliers (Lecture Notes in Mathematics, 163) (French Edition)
Asymptotic Analysis II: Surveys and New Trends (Lecture Notes in Mathematics, 985)
Asymptotics of Analytic Difference Equations (Lecture Notes in Mathematics, 1085)
Introduction to Stokes Structures
Discontinuous Cebysev Systems (Lecture Notes in Mathematics, 707)
Asymptotic Analysis: Linear Ordinary Differential Equations
Precise Spectral Asymptotics for Elliptic Operators Acting in Fiberings over Manifolds with Boundary (Lecture Notes in Mathematics, 1100)