75/2402 Pauli, W. Relativitätstheorie. Introd. A. Sommerfeld. Berlin, B.G. Treubner, 1921, 1st ed. in book form, IV,(1),540-775p., orig. hcl.

- Foxed.

= The first comprehensive presentation of the mathematical and physical ideas of Einstein, an introduction to the special and general theories of relativity. Einstein never wrote a large work about his theory. DSB X, p.422.