1
Published: Hatfield : University of Hertfordshire Press, 1999
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2
Published: Hatfield : University of Hertfordshire Press, 2006
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3
Published: München : Deutscher Taschenbuch Verlag, 1993
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4
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Article
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7
Published: Göttingen : Wallstein Verlag, 2015
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8
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9
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10
Published: Oldenburg : Universität Oldenburg, Zentrum für pädagogische Praxis, 1985
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11
Published: Berlin : Edition Parabolis, 2000
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12
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13
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14
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15
Article
16
Published: Frankfurt am Main : Kramer, 1986
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17
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18
Published: Reinbek bei Hamburg : Rowohlt Taschenbuch Verlag, 1983
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19
Published: Lüneburg : VVN-BdA Lüneburg, 2008
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