An Inquiry Into the Communicational Structures of the Early Sangha and King Ashoka’s Edicts – A Model to Tackle Religious Diversity. Journal of the Henry Martyn Institute Vol. 30 Nos. 1& 2 (2011): 62-86. Revised version of: How to Tackle Religious Diversity? – An Inquiry Into the Communicational Structures of the Early Sangha and King Ashoka’s Edicts. Shinshu-gaku No. 114.(2006): 1-33.

How to Tackle Religious Diversity? – An Inquiry Into the Communicational Structures of the Early Sangha and King Ashoka’s Edicts. Shinshū-gaku (The Shinshugaku – Journal of Studies in Shin Buddhism) No. 114. (2006): 1-33. Revidierte Version veröffentlicht in: Journal of the Henry Martyn Institute Vol. 30 (2011): 62-86.

The Role of Mondō (Conversations) in Honen’s Life and Work. In: James Baskind (ed.), Japanese Studies Around the World 2008. Scholars of Buddhism: Buddhist Studies in the 21. Century. Kyoto: International Research Center for Japanese Studies 2009: 7-19.

Report about the Research Project “Mondō and Debates in Buddhism” – An Interdisciplinary Research into Forms of Intra- and Interreligious Communication. Bukkyō bunka kenkyū-sho kiyō (Bulletin of the Research Institute for Buddhist Culture, Ryukoku University) Vol. 46 (2007): 1-8.

Hg., zusammen mit Yoshiyuki Inoue. Mondō to ronsō no bukkyō. Shūkyō-teki komyunikēshon no shatei (Didaktische Gespräche und Disputationen im Buddhismus – Die Reichweite religiöser Kommunikation). Ryukoku Daigaku Bukkyō Bunka Kenkyusho Sōsho No. 27. Kyoto: Hōzōkan 2011.

(Together with Yoshiyuki Inoue) Shūkyō ni okeru komyunikēshon no katachi (Forms of communication in religion) (Introduction). In: Martin Repp and Yoshiyuki Inoue (Eds.), Mondō to ronsō no bukkyō – Shūkyō-teki komyunikēshon no shatei (Buddhism of didactic conversations and disputations – The range of religious communication). (Ryukoku Daigaku Bukkyō Bunka Kenkysho Sōsho No. 27) Kyoto: Hōzōkan 2011: i-x.

Sengoku jidai ni okeru Iezusu-kai senkyō-shi to Bukkyō sōryō to no shūron. (Debates between the Jesuit missionaries and Buddhist priests during the time of the Warring States). In: Martin Repp and Yoshiyuki Inoue (Eds.), Mondō to ronsō no bukkyō – Shūkyō-teki komyunikēshon no shatei (Buddhism of didactic conversations and disputations – The range of religious communications). (Ryukoku Daigaku Bukkyō Bunka Kenysho Sōsho No. 27) Kyoto: Hōzōkan 2011: 149-161.

Religionsgespräche zwischen Jesuiten und Buddhisten im Japan des 16./17. Jahrhunderts. In: Benjamin Simon, Henning Wrogemann (Hg.), Konviviale Theologie. Festgabe für Theo Sundermeier zum 70. Geburtstag. Frankfurt a.M.: Otto Lembeck 2005: 41-53.

Die Begegnung zwischen Europa und Ostasien anhand der Auseinandersetzungen um den christlichen Gottesbegriff. Neue Zeitschrift für Systematische Theologie und Religionsphilosophie 45. Bd. (2003): 71-100.

How do Buddhism and Christianity Relate to Other Religions? – Comparative Studies of Cases in China and Japan. In: Fujimoto Kiyohiko Sensei koki kinen ronbun-shū kankō-kai (Ed.), Hōnen bukkyō no shosō (Various aspects of Hōnen’s Buddhism). Kyoto: Hōzō-kan 2014: 1203-1222.

Buddhist-Christian Relations in Japan – An Overview. In: Perry Schmidt-Leukel (ed.), Buddhist-Christian Relations in Asia. St. Ottilien: Eos 2017: 209-242.