分面浏览：发表日期 |
| 当前检索式 | ((ALL：al)) |
| 限定条件 | ((专题：北京大学)) |
| 2017 19 | 2016 13 | 2015 8 |
| 2014 12 | 2013 14 | 2012 23 |
| 2011 14 | 2010 9 | 2009 16 |
| 2008 15 | 2007 6 | 2006 7 |
| 2005 4 | 2004 5 | 2003 14 |
| 2002 7 | 2001 13 | 2000 7 |
| 1999 2 | 1998 4 | 1997 5 |
| 1996 5 | 1995 3 | 1994 3 |
| 1992 3 | 1991 1 | 1990 4 |
| 1989 8 | 1988 1 | 1987 4 |
| 1986 1 | 1985 4 | 1984 3 |
| 1983 3 | 1982 5 | 1981 3 |
| 1979 1 |
