ke xue xin wen

..............page:13,40,47,49

jiao ban mo ca han jie yu jia gong ji shu yan jiu jin zhan
ma zong yi

..............page:53-54

di zhen yan jiu shu ju ju jiao fen xi
zhang ke ju

..............page:14-19

ji yu yang hua wu ban dao ti na mi xian de qi ti chuan gan qi
wan qing

..............page:50

zhong guo re dian lun wen bang

..............page:41-45

Is the United States Losing Ground in Science? A Global Perspective on the World Science System
Loet Leydesdorff1;Caroline Wagner2;3 1 Amsterdam School of Communications Research;University of Amsterdam Kloveniersburgwal 48;1012 CX Amsterdam;Netherlands 2 SRI International;Arlington;VA;USA 3 George Washington University;Washington;DC;USA

..............page:1-7

Analysis on the US Biosynthesis Patent
Zhang Xian;Gao Lidan;Chen Yunwei The Chengdu Branch of National Science Library;Chinese Academy of Sciences;Chengdu 610041;China

..............page:8-13

tan na mi guan de biao mian ke kong hua xue yan jiu
gao chao ; yan de yue

..............page:46-47

ji feng yan jiu shu ju ju jiao fen xi
sun tao tao

..............page:26-31

hai ping mian bian dong shu ju ju jiao fen xi
ma jian hua

..............page:20-25

kang bing du tian ran mian yi xin hao zhuan dao guan jian jie tou dan bai de fa xian
shu hong bing

..............page:51-52

ke xue gong xian zhi shu yu ke xue jian shang li zhi shu

..............page:32-40

tong lun fen xi fang fa : qiu jie qiang fei xian xing wen ti de yi ge xin tu jing
liao shi jun

..............page:48-49

wen xian ji liang zhi biao shi yi

..............page:69