- Publication venue
- Publication date
- 01/01/1981
- Field of study
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- Publication venue
- Publication date
- 01/01/1984
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- Veenman
- Publication date
- 01/01/1966
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- Publication venue
- Kluwer Academic Publishers
- Publication date
- 01/01/1990
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- Publication date
- 01/01/1991
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- Publication date
- 01/01/1986
- Field of study
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- Publication date
- 01/01/1989
- Field of study
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