1 | 1979
(6 articles)2 | 1980
(7 articles)3 | 1980
(4 articles)4 | 1981
(6 articles)5 | 1981
(5 articles)6 | 1982
(6 articles)7 | 1983
(6 articles)8 | 1983
(4 articles)9 | 1984
(3 articles)10 | 1984
(4 articles)11-12 | 1985
(15 articles)13-14 | 1986
(11 articles)15-16 | 1987
(12 articles)17-18 | 1988
(11 articles)19 | 1989
(6 articles)20 | 1989
(5 articles)21 | 1990
(6 articles)22 | 1990
(8 articles)23 | 1991
(6 articles)24 | 1991
(7 articles)