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• v81i1 (September 24, 1999)
• v81i2 (October 8, 1999)
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• v81i4 (November 5, 1999)
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• v81i6 (December 3, 1999)

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• v80i1 (May 14, 1999)
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• v80i6 (July 9, 1999)
• v80i7 (July 23, 1999)

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• v79i1 (January 15, 1999)
• v79i2 (January 29, 1999)
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• v79i4 (February 26, 1999)
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• v79i6 (March 26, 1999)