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Published: Hatfield : University of Hertfordshire Press, 1999
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Published: Hatfield : University of Hertfordshire Press, 2006
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Published: Oldenburg : Universität Oldenburg, Zentrum für pädagogische Praxis, 1985
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Published: Berlin : Edition Parabolis, 2000
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Published: Frankfurt am Main : Kramer, 1986
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Published: Lüneburg : VVN-BdA Lüneburg, 2008
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