Format:
224 S. :
,
graph. Darst.
ISBN:
951-680-244-3
Series Statement:
Jyväskylä studies in education, psychology and social research 72
Note:
Zugl.: Jyväskylä, Univ., Diss., 1990
Language:
Finnish
Subjects:
Education
Keywords:
Hochschulschrift
;
Hochschulschrift
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