Trends and Characteristics of DARPA’s Defense Research Budget Activities over the Last 5 Years
LI Linli LI Jiaoyang TANG Juan YIN Xiangfan ZHANG Jian
WORLD SCI-TECH R&D . 2023, (1): 77 -86 .  DOI: 10.16507/j.issn.1006-6055.2022.11.009