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   2018 (23 publications)    2017 (3312 publications)    2016 (5703 publications)
   2015 (6042 publications)    2014 (5574 publications)    2013 (5045 publications)
   2012 (5146 publications)    2011 (4800 publications)    2010 (5123 publications)
   2009 (4981 publications)    2008 (5188 publications)    2007 (5405 publications)
   2006 (5599 publications)    2005 (5703 publications)    2004 (5181 publications)
   2003 (4939 publications)    2002 (4676 publications)    2001 (4204 publications)
   2000 (3828 publications)    1999 (3426 publications)    1998 (891 publications)
   1997 (679 publications)    1996 (623 publications)    1995 (497 publications)
   1994 (456 publications)    1993 (399 publications)    1992 (359 publications)
   1991 (314 publications)    1990 (292 publications)    1989 (236 publications)
   1988 (203 publications)    1987 (190 publications)    1986 (180 publications)
   1985 (151 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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