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1
by Siekmann, Helmut E.
Published 2001
Springer Berlin Heidelberg
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2
by Siekmann, Helmut E., Thamsen, Paul Uwe
Published 2009
Springer Berlin Heidelberg
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3
by Sachs, Michael
Published 2012
Duncker & Humblot
Other Authors: “...Siekmann, Helmut...”