分面浏览：发表日期 |
| 当前检索式 | ((ALL：离子组成)) |
| 限定条件 | ((专题：北京大学)) |
| 2017 12 | 2016 17 | 2015 12 |
| 2014 12 | 2013 12 | 2012 19 |
| 2011 9 | 2010 12 | 2009 15 |
| 2008 17 | 2007 14 | 2006 17 |
| 2005 19 | 2004 10 | 2003 16 |
| 2002 12 | 2001 21 | 2000 14 |
| 1999 11 | 1998 14 | 1997 5 |
| 1996 2 | 1995 6 | 1994 4 |
| 1993 4 | 1992 3 | 1991 6 |
| 1990 3 | 1989 8 | 1988 12 |
| 1987 3 | 1986 11 | 1985 3 |
| 1984 5 | 1983 6 | 1982 5 |
| 1981 4 | 1980 2 | 1979 1 |
| 1977 1 | 1973 1 | 1964 1 |
| 1962 1 | 1959 1 | 1958 1 |
