Spiegel, Torsten MPI for Comparative and International Private Law, Max Planck Society;
https://www.zjapanr.de/index.php/zjapanr/article/view/1292 (Any fulltext)
Max Planck Private Law Research Paper No. 18/23 (Any fulltext)
Spiegel, T. (2018). Independent Directors in Japan – Changing Corporate Governance? Zeitschrift für Japanisches Recht, (46), 85-129.