Pauli letter collection: letter to Wolfgang Pauli

Gürsey replies to three letters by Pauli of the 26, 27 February and the 1 March 1958. He writes on the quantum numbers Q, N, L, on Källén's objection to the spinor-theory, on antiparticles in the one-vacuum treatment, on the miror problem, on his own mistakes in his last letter and on the meaning of certain operators