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Results by year

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

Year Number of Results
1938 1
1957 1
1961 1
1965 1
1967 1
1969 1
1970 2
1971 1
1972 1
1973 7
1974 1
1975 2
1976 2
1977 2
1978 1
1979 2
1981 1
1983 6
1984 5
1987 3
1988 4
1989 2
1990 3
1991 2
1992 2
1993 4
1994 8
1995 7
1996 10
1997 5
1998 7
1999 6
2000 6
2001 15
2002 8
2003 12
2004 13
2005 14
2006 9
2007 18
2008 16
2009 20
2010 16
2011 14
2012 23
2013 27
2014 17
2015 9
2016 15
2017 35
2018 37
2019 37
2020 6
Text availability
Article attribute
Article type
Publication date

Search Results

427 results
Results by year

Citations

427 articles found by citation matching

Search results

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427 results
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