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Books often have frontispieces with fine portraits not easily found elsewhere, and staff of the Niels Bohr Library are cataloging such items to form part of the Emilio Segrè Visual Archives. From E.A. Tropp, V. Ya. Frenkel, and A.D. Chernin, Alexander A. Friedman: The Man Who Made the Universe Expamd (Cambridge, 1993). |