1
Published: Münster [u.a.] : Waxmann, 2001
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2
Published: Braunschweig : Limbach, 1973
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3
Published: Braunschweig : Limbach, 1962
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4
Published: Opladen : Leske + Budrich, 2002
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5
Published: Stuttgart, 2004
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6
Published: Opladen : Leske + Budrich, 2001
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7
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8
Published: Kiel : Agimos-Verl, 2000
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9
10
Published: Bonn, 2000
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11
Published: Bad Kreuznach, 1998
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12
Published: Bonn, 1998
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13
Published: Erfurt, 2012
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14
Published: Presse- und Informationsamt der Bundesregierung, 2001
15
Published: Oswiecim, 2001
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16
Published: Bonn, 1997
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17
Published: Bonn, 2002
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18
Published: Weinstadt : Klip & Lieb, 2000
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19
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20
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