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Irreversibility and causality : semigroups and rigged hilbert spaces : a selection of articles presented at the 21ts International Colloquium of Group Theoretical Methods in Physics (ICGTMP) at Goslar, Germany, July 16-21, 1996 / Arno Bohm, Heinz-Dietrich Doebner, Piotr Kielanowski (eds.) |
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