Kikkawa, Jiro, Takaku, Masao, Yoshikane, Fuyuki. Long-term Progress of DOI Links on Wikipedia: Comparative Analysis of English and Japanese Wikipedia from 2015 to 2023. Proceedings of the 11th Asia-Pacific Conference on Library & Information Education and Practice (A-LIEP 2023). 2023. 44-59
Kikkawa, Jiro, Takaku, Masao, Yoshikane, Fuyuki. Quantitative Analysis of Scholarly References on YouTube: Focusing on Their Research Fields and Contributors. Proceedings of the 25th International Conference on Asia-Pacific Digital Libraries (ICADL 2023), Lecture Notes in Computer Science. 2023. 14457. 149-158
Kawamoto, Marika, Koizumi, Masanori, Yoshikane, Fuyuki. Proposal of a Qualitative Content Analysis Process for a Solo Researcher. LIBRI-INTERNATIONAL JOURNAL OF LIBRARIES AND INFORMATION STUDIES. 2023. 73. 2. 139-152
Kikkawa, Jiro, Takaku, Masao, Yoshikane, Fuyuki. Time lag analysis of adding scholarly references to English Wikipedia: How rapidly are they added to and how fresh are they?. Proceedings of the 18th International Conference, iConference 2023. 2023. 13972. 425-438
Takei, Chizuko, Kikkawa, Jiro, Yoshikane, Fuyuki. Progress in Interdisciplinarity: Bibliometric Analysis of the Diversity of Researchers’ Fields of Specialization Over a 20-Year Period. LIBRES-LIBRARY AND INFORMATION SCIENCE RESEARCH ELECTRONIC JOURNAL. 2022. 32. 1. 64-80
Quantitative Analysis of Scholarly References on YouTube: Focusing on Their Research Fields and Contributors
(The 25th International Conference on Asia-Pacific Digital Libraries (ICADL 2023) / The 2023 International Forum on Data, Information, and Knowledge for Resilient and Trustworthy Digital Societies (IFDIK 2023))
Long-term Progress of DOI Links on Wikipedia: Comparative Analysis of English and Japanese Wikipedia from 2015 to 2023
(The 11th Asia-Pacific Conference on Library & Information Education and Practice (A-LIEP 2023) / The 2023 International Forum on Data, Information, and Knowledge for Resilient and Trustworthy Digital Societies (IFDIK 2023))
Time lag analysis of adding scholarly references to English Wikipedia: How rapidly are they added to and how fresh are they?
(iConference 2023)
Analysis of the deletions of DOIs: What factors undermine their persistence and to what extent?
(The 26th International Conference on Theory and Practice of Digital Libraries (TPDL 2022) 2022)
Analysis of the relationships between academic research fields based on co-occurrence of journal categories.
(Proceedings of ISSI 2019 (17th International Conference onScientometrics & Informetrics). p. 2516-2517. (2-5 September, 2019 at , Italy) 2019)
Dataset of the deleted DOIs extracted from the difference set between Crossref DOIs as of March 2017 and January 2021 <https://doi.org/10.5281/zenodo.6841257>
Kikkawa, Jiro, Takaku, Masao, Yoshikane, Fuyuki 2022 - 現在
Dataset of first appearances of the scholarly bibliographic references on English Wikipedia articles as of 1 March 2017 and as of 1 October 2021 <https://doi.org/10.5281/zenodo.5595573>
Kikkawa, Jiro, Takaku, Masao, Yoshikane, Fuyuki 2021 - 現在