1
by Song, Ligang.
Published 2021
Format:
Table of Contents: “... personnel intensity in various economies -- Figure 1.3 Major countries in patent applications in 2018...”
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2
by Dou, Peng.
Published 2024
Format:
Table of Contents: “...2.3The Effects of Population Aging on Economic Sustai -- 2.3.1 Increase the Investment in Human...”
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