Based on lectures by W. Pauli at Copenhagen, September 1955.

Looking for a c-number ("classical") solution of the equation in the title.

Part of a manuscript by Heisenberg. See also 1/581.

The fundamental field as a 4x4 matrix.

Second edition of this manuscript. In conclusion: "Quite generally the present paper is meant rather as a program than a report on what is hoped to become a unified quantum field theory."

Manuscript on the relations between science and the concepts of every day life.

Speech by Pauli in honour of H. Weyl.