This is pBibTeX, Version 0.99d-j0.33 (utf8.euc) (TeX Live 2020)
Capacity: max_strings=200000, hash_size=200000, hash_prime=170003
The top-level auxiliary file: kiyama-sigos.aux
The style file: ipsjsort.bst
Database file #1: reference.bib
You've used 7 entries,
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