The data source of this study is Web of Science Core Collection? Not enough
Crossref DOI link: https://doi.org/10.1007/s11192-019-03238-1
Published Online: 2019-09-23
Published Print: 2019-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Liu, Weishu http://orcid.org/0000-0001-8780-6709
Text and Data Mining valid from 2019-09-23
Version of Record valid from 2019-09-23
Article History
Received: 23 July 2019
First Online: 23 September 2019
Compliance with ethical standards
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: The author declares that there is no conflict of interest.