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Results by year

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

Year Number of Results
1971 1
1973 2
1974 1
1978 1
1980 2
1981 2
1982 2
1983 3
1984 4
1986 6
1987 5
1988 2
1989 3
1990 5
1991 3
1992 3
1993 1
1994 5
1995 3
1996 7
1997 2
1998 3
1999 2
2000 1
2001 3
2002 2
2003 1
2004 3
2005 1
2006 5
2007 2
2008 4
2010 2
2011 2
2012 2
2013 4
2014 3
2015 1
2016 1
2017 1
2018 7
2019 7
2020 11
2021 13
2022 17
2023 1
Text availability
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Publication date

Search Results

148 results
Results by year
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148 results