分面浏览：发表日期 |
| 当前检索式 | ((ALL：LOW-ENERGY)) |
| 限定条件 | ((专题：北京大学)) |
| 2017 169 | 2016 189 | 2015 191 |
| 2014 170 | 2013 138 | 2012 93 |
| 2011 87 | 2010 53 | 2009 58 |
| 2008 42 | 2007 18 | 2006 29 |
| 2005 34 | 2004 17 | 2003 11 |
| 2002 12 | 2001 21 | 2000 8 |
| 1999 8 | 1998 1 | 1997 3 |
| 1996 4 | 1995 2 | 1994 3 |
| 1993 4 | 1992 1 | 1991 3 |
| 1990 3 | 1989 1 | 1988 1 |
| 1987 2 | 1986 1 |
