Quadratic Forms in Infinite Dimensional Vector Spaces

Lectures on Spaces of Nonpositive Curvature

Effective Methods in Algebraic Geometry

Representation Theory of Finite Groups and Finite-Dimensional Algebras: Proceedings of the Conference at the University of Bielefeld from May 15–17, 1991, and 7 Survey Articles on Topics of Representation Theory

Introduction to Riemannian Manifolds: Edition 2

Pseudodifferential Operators and Nonlinear PDE