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   2018 (59 publications)    2017 (4094 publications)    2016 (5765 publications)
   2015 (6128 publications)    2014 (5667 publications)    2013 (5052 publications)
   2012 (5150 publications)    2011 (4804 publications)    2010 (5127 publications)
   2009 (4983 publications)    2008 (5189 publications)    2007 (5409 publications)
   2006 (5599 publications)    2005 (5704 publications)    2004 (5181 publications)
   2003 (4939 publications)    2002 (4676 publications)    2001 (4204 publications)
   2000 (3828 publications)    1999 (3426 publications)    1998 (891 publications)
   1997 (680 publications)    1996 (623 publications)    1995 (497 publications)
   1994 (456 publications)    1993 (401 publications)    1992 (360 publications)
   1991 (314 publications)    1990 (292 publications)    1989 (236 publications)
   1988 (203 publications)    1987 (190 publications)    1986 (180 publications)
   1985 (152 publications)    1984 (98 publications)    1983 (121 publications)
   1982 (92 publications)    1981 (76 publications)    1980 (69 publications)
   1979 (54 publications)    1978 (55 publications)    1977 (56 publications)
   1976 (36 publications)    1975 (38 publications)    1974 (20 publications)
   1973 (31 publications)    1972 (27 publications)    1971 (26 publications)
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