分面浏览：发表日期 |
| 当前检索式 | ((ALL：Protective layers)) |
| 限定条件 | 无 |
| 2024 1 | 2023 2 | 2022 4 |
| 2021 10 | 2020 16 | 2019 14 |
| 2018 18 | 2017 15 | 2016 6 |
| 2015 7 | 2014 7 | 2013 8 |
| 2012 11 | 2011 25 | 2010 27 |
| 2009 24 | 2008 22 | 2007 19 |
| 2006 25 | 2005 5 | 2004 18 |
| 2003 24 | 2002 26 | 2001 23 |
| 2000 22 | 1999 16 | 1998 19 |
| 1997 13 | 1996 9 | 1995 10 |
| 1994 9 | 1993 11 | 1992 10 |
| 1991 10 | 1990 4 | 1989 14 |
| 1988 7 | 1987 7 | 1986 14 |
| 1985 2 | 1984 4 | 1983 4 |
| 1978 1 |
