1
Lectures on the many body problem : Universita di Napoli : Istituto di Fisica Teorica : international spring school 0001 : Napoli, 1962.
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2
Lectures on the many body problem. vol. 0002 : Ravello, 17.04.1963-04.05.1963.
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3
Progress in nonequilibrium Green's functions : proceedings of the Conference Kadanoff-Baym Equations : progress and perspectives for many-body physics : Rostock, Germany 20.- 24. September 1999 /
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