Research on the measurement of regional R&D input efficiency from the perspective of innovation value chain
2019 ◽
Vol 2
(1)
◽
2020 ◽
Vol 2
(1)
◽
pp. 114-122
2012 ◽
Vol 2
(12)
◽
pp. 317-320
2019 ◽
Vol 5
(1)
◽
pp. 1-10
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