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Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1947 1
1956 1
1965 1
1966 1
1967 1
1968 1
1969 1
1970 1
1972 2
1973 2
1974 5
1975 5
1976 7
1977 8
1978 5
1979 10
1980 9
1981 10
1982 3
1983 9
1984 10
1985 9
1986 7
1987 10
1988 10
1989 9
1990 5
1991 4
1992 1
1993 5
1994 3
1995 2
1996 3
1997 2
1998 4
1999 4
2000 2
2001 3
2002 5
2003 4
2004 4
2005 6
2006 5
2007 4
2008 10
2009 10
2010 4
2011 6
2012 12
2013 9
2014 7
2015 7
2016 13
2017 15
2018 16
2019 6
2020 0
Text availability
Article attribute
Article type
Publication date

Search Results

291 results
Results by year
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