Journal of Beijing University of Posts and Telecommunications(Social Sciences Edition)
#br# Technology Forecasting of 3D Printing Industry#br# ——Based on Main Path Analysis of Patent
XU Guan-nan1，XIE Meng-jiao1，PAN Mei-juan2，ZHOU Yuan2
JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM . 2016, (4): 77 -85 . 

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