Volumes and issues
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Volume 13 March - September 1999
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Volume 12 March 1998 - June 1999
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Volume 11 March - September 1997
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Volume 10 March - December 1996
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Volume 9 March - December 1995
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Volume 8 March - December 1994
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Volume 7 March - December 1993
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Volume 6 March - December 1992
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Volume 5 March - December 1991
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Volume 4 March - December 1990
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Volume 3 March - December 1989
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Volume 2 March - December 1988
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Volume 1 March - December 1987