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Vol. 1, no. 1 (Nov. 1989)-v. 1, no. 2 (Dec. 1989)
v. 2, no. 2 (Feb. 1990)
v. 2, no. 4 (Apr. 1990)
v. 2, no. 9 (Sep. 1990)
v. 2, no. 11 (Nov. 1990)-v. 3, no. 1 (Jan. 1991)
v. 3, no. 4 (Apr. 1991)
v. 3, no. 7 (Jul. 1991)-v. 3, no. 8 (Aug. 1991)
v. 3, no. 10 (Oct. 1991)-v. 4, no. 1 (Jan. 1992)
v. 4, no. 3 (Mar. 1992)-v. 4, no. 6 (Jun. 1992)
v. 4, no. 11 (Nov. 1992)-v. 5, no. 5 (May 1993)
v. 5, no. 10 (Oct. 1993)
v. 5, no. 12 (Dec. 1993)
v. 6, no. 6 (Jun. 1994)
v. 6, no. 9 (Sep. 1994)
v. 6, no. 11 (Nov. 1994)-v. 7, no. 5 (May 1995)
v. 7, no. 7 (Jul. 1995)-v. 7, no. 12 (Dec. 1995)
v. 8, no. 2 (Feb. 1996)-v. 8, no. 8 (Aug. 1996)
v. 8, no. 10 (Oct. 1996)-v. 10, no. 3 (Mar. 1998)
v. 10, no. 5 (May 1998)-v. 13, no. 2 (Feb. 2001)