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1за авторством Kock, UdoFull text available on IMF
Опубліковано 2010Off-Campus Access: No User ID or Password Required
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2за авторством Sun, YanІнші автори: “...Kock, Udo...”
Опубліковано 2011Off-Campus Access: No User ID or Password Required
On-Campus Access: No User ID or Password Required
Full text available on IMF
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