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1Academic Journal
المؤلفون: Thomas A. Neubauer (11981630), Torsten Hauffe (437223), Daniele Silvestro (281016), Christopher R. Scotese (6998246), Björn Stelbrink (11981633), Christian Albrecht (199934), Diana Delicado (5123429), Mathias Harzhauser (3309006), Thomas Wilke (199950)