分面浏览：Issued Date |
| 当前检索式 | ((ALL：Variability)) |
| 限定条件 | 无 |
共45条，第1-45条
| 2024 65 | 2023 486 | 2022 747 |
| 2021 803 | 2020 870 | 2019 1014 |
| 2018 1014 | 2017 810 | 2016 903 |
| 2015 789 | 2014 598 | 2013 590 |
| 2012 397 | 2011 369 | 2010 397 |
| 2009 284 | 2008 320 | 2007 267 |
| 2006 283 | 2005 209 | 2004 120 |
| 2003 116 | 2002 56 | 2001 59 |
| 2000 42 | 1999 45 | 1998 25 |
| 1997 29 | 1996 16 | 1995 12 |
| 1994 10 | 1993 7 | 1992 8 |
| 1991 10 | 1990 8 | 1989 7 |
| 1988 2 | 1987 4 | 1986 6 |
| 1985 1 | 1984 3 | 1983 2 |
| 1980 1 | 1968 1 | 1905 1 |