Sturm-Liouville Operators and Applications (Operator Theory: Advances and Applications) (German Edition)
Differential Equations with Small Parameters and Relaxation Oscillations
Almost Periodic Solutions of Impulsive Differential Equations
Multidimensional Inverse Problems for Differential Equations (Lecture Notes in Mathematics, 167)
Almost Periodic Differential Equations (Lecture Notes in Mathematics, 377)
Systems of Evolution Equations with Periodic and Quasiperiodic Coefficients
Non-Local Methods for Pendulum-Like Feedback Systems (Teubner-Texte zur Mathematik) (German Edition)
Elements of the Mathematical Theory of Multi-Frequency Oscillations (Mathematics and its Applications, 71)
Differential Equations with Operator Coefficients with Applications to Boundary Value Problems for Partial Differential Equations
Mathematical Methods of Classical Mechanics (Graduate texts in mathematics)