;Lebow, Richard Ned (King's College London),Norman, Ludvig (University of Stockholm)
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Lebow, Richard Ned (King's College London),Norman, Ludvig (Stockholms Universitet)
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Ludvig (Uppsala University Norman Sweden.)
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;Lebow, Richard Ned (King's College London),Norman, Ludvig (Stockholms Universitet)
(1)
;Lebow, Richard Ned (King's College London),Norman, Ludvig (University of Stockholm)
(1)