分面浏览：发表日期 |
| 当前检索式 | ((ALL：Pb-2)) |
| 限定条件 | ((专题：北京大学)) |
| 2017 84 | 2016 81 | 2015 86 |
| 2014 117 | 2013 110 | 2012 76 |
| 2011 62 | 2010 52 | 2009 62 |
| 2008 47 | 2007 33 | 2006 41 |
| 2005 34 | 2004 23 | 2003 10 |
| 2002 14 | 2001 14 | 2000 17 |
| 1999 8 | 1998 4 | 1997 2 |
| 1996 2 | 1994 7 | 1993 2 |
| 1992 3 | 1991 3 | 1990 3 |
| 1989 2 | 1988 3 | 1987 2 |
| 1986 4 | 1985 2 | 1982 5 |
| 1981 2 | 1980 1 | 1959 2 |
