De studenten van het Tokugawa-shogunaat en Johann Joseph Hoffmann (1805-1878)(「幕府オランダ留学生とライデン大学教授ホフマン」)
(Workshop “Towards a New Phase of Historical Climatology: Dutch Navy Logbooks and Climatological Information”, Organized by the JSPS Grant-in-Aid for Scientific Research (A) “Re-examination of climate and history around Japan during the 1860s based on Dutch ship logbook” 2023)