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   2018 (4 publications)    2017 (865 publications)    2016 (4801 publications)
   2015 (5482 publications)    2014 (5371 publications)    2013 (5012 publications)
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   2009 (4968 publications)    2008 (5175 publications)    2007 (5397 publications)
   2006 (5590 publications)    2005 (5699 publications)    2004 (5179 publications)
   2003 (4939 publications)    2002 (4673 publications)    2001 (4205 publications)
   2000 (3829 publications)    1999 (3425 publications)    1998 (891 publications)
   1997 (679 publications)    1996 (623 publications)    1995 (496 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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