Volumes 1 - 31

1980

Vol. 01, no paper

Vol. 02, no paper

1981

Vol. 03, no paper

Vol. 04, no paper

Vol. 05, 11 papers

1982

Vol. 06*, 8 papers

1983

Vol. 07*, 1 paper

Vol. 08, 13 papers

Vol. 09*, 5 papers

1984

Vol. 10*, 8 papers

Vol. 11*, 8 papers

1985

Vol. 12*, 2 papers

Vol. 13*, 8 papers

1986

Vol. 14*, 2 papers

Vol. 14s*, 5 papers

Vol. 15*, 8 papers

1987

Vol. 16*, 3 papers

Vol. 17*, 3 papers

Vol. 18*, 15 papers

1988

Vol. 19*, 9 papers

Vol. 20, 11 papers

1989

Vol. 21*, 12 papers

Vol. 22*, 5 papers

1990

Vol. 23, 5 papers

Vol. 24, 5 papers

Vol. 25*, 11 papers

1991

Vol. 26*, 8 papers

Vol. 27*, 3 papers

1992

Vol. 28*, 8 papers

Vol. 29, 8 papers

1993

Vol. 30*, 8 papers

Vol. 31*, 7 papers