Spiegel, Torsten MPI for Comparative and International Private Law, Max Planck Society;
https://www.zjapanr.de/index.php/zjapanr/article/view/422 (Any fulltext)
Spiegel, T., & Pfeifer, M. (2014). Conference „Independent Directors in Japan and Other Major Asian Jurisdictions“. Berlin, July 17th and 18th, 2014. Zeitschrift für Japanisches Recht, (38), 287-291.