英語で読めるのはありがたい。
- The Theory of Spinors
- On certain differential expressions and the Pfaff problem
- On the integration of systems of total differential equations
- Lessons on integral invariants
- The structure of infinite groups
- Spaces with conformal connections
- On manifolds with projective connections
- The unitary theory of Einstein-Mayer
- Exterior Differential Systems and its Applications
