×
模态框（Modal）标题
在这里添加一些文本
Close
Close
Submit
Cancel
Confirm
×
模态框（Modal）标题
×
Journal
Article
Figure
Search
EN
中文
Home
About Journal
About Journal
Indexed in
Awards
Editorial Board
Guide for Authors
Browse
Current Issue
Online First
Archive
Highlights
Topic
Archive by Subject
Most Viewed
Most Download
Most Cited
E-mail Alert
RSS
Policies and Ethics
Subscribe
Contact us
EN
中文
GEOGRAPHICAL CHARACTERISTICS OF KNOWLEDGE ECONOMY
Zhang Pingyu
GEOGRAPHICAL RESEARCH . 1998, (
4
): 398 -400 . DOI: 10.11821/yj1998040009
