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Baltmannsweiler: Schneider-Verl. Hohengehren, 1997
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SAGE Publications, 2004
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SAGE Publications, 2003
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SAGE Publications, 1998
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SAGE Publications, 1998
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SAGE Publications, 1997
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SAGE Publications, 1998
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Wiley, 1997
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SAGE Publications, 1996
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SAGE Publications, 1996
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SAGE Publications, 1994
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SAGE Publications, 1994
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Informa UK Limited, 1991
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SAGE Publications, 1991
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SAGE Publications, 1992
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SAGE Publications, 1989
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Aikuiskasvatus, 1985
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SAGE Publications, 1985
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SAGE Publications, 1981
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SAGE Publications, 1978