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Source: Dissertation Abstracts International, Volume: 60-07, Section: A, page: 2569.
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Source: Dissertation Abstracts International, Volume: 58-04, Section: B, page: 2164.
Persistent link: https://www.econbiz.de/10009472354
Source: Dissertation Abstracts International, Volume: 60-07, Section: A, page: 2689.
Persistent link: https://www.econbiz.de/10009472400
Persistent link: https://www.econbiz.de/10009472478
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