Spherical Harmonics (Lecture Notes in Mathematics, 17)
Regular Boundary Value Problems Associated with Pairs of Ordinary Differential Expressions (Lecture Notes in Mathematics, 858)
Extremum Problems for Bounded Univalent Functions (Lecture Notes in Mathematics, 646)
Seminar über Potentialtheorie (Lecture Notes in Mathematics, 69) (German Edition)
Discontinuous Cebysev Systems (Lecture Notes in Mathematics, 707)
Constructive Methods for Elliptic Equations (Lecture Notes in Mathematics, 365)
Barrelledness in Topological and Ordered Vector Spaces (Lecture Notes in Mathematics, 692)
Absolute Summability of Fourier Series and Orthogonal Series (Lecture Notes in Mathematics, 1067)
Stability of Unfoldings (Lecture Notes in Mathematics, 393)
Icosahedral Galois Representations (Lecture Notes in Mathematics, 654)
