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- June 2009 – Volume 13, Number 3
- January 2009 – Volume 13, Number 2:
- September 2008 – Volume 13, Number 1
- June 2008 – Volume 12, Number 3
- January 2008 – Volume 12, Number 2
- September 2007 – Volume 12, Number 1
- June 2007 – Volume 11, Number 3
- February 2007 – Volume 11, Number 2
- September 2006 – Volume 11, Number 1
- May 2006 – Volume 10, Number 3
- January 2006 – Volume 10, Number 2
- September 2005 – Volume 10, Number 1
- May 2005 – Volume 9, Number 2
- January 2005 – Volume 9, Number 1
- May 2004 – Volume 7, Number 4
- February 2004 – Volume 7, Number 3
- November 2003 – Volume 7, Number 2
- September 2003 – Volume 7, Number 1
- January 2003 – Volume 6, Number 2
- April 2002 – Volume 5, Number 3
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- April 2001 – Volume 4, Number 3
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- September 2000 – Volume 4, Number 1
- June 2000 – Volume 3, Number 3
- March 2000 – Volume 3, Number 2
- September 1999 – Volume 3, Number 1
- May 1999 – Volume 2, Number 2
- February 1999 – Volume 2, Number 1
- November 1998 – Volume 1, Number 2
- September 1998 – Volume 1, Number 1