References [change | change source] 1. ↑ Nussbaum, Louis-Frédéric (2002). Japan Encyclopedia. Harvard University Press. p. 5. 6. ↑ Burke, Caroline (2019-02-01). "Cary Booker, Cory Booker's Brother: 5 Fast Facts to Know". Active Network, LLC. Retrieved 6 February 19 – Caspar Schoppe, German scholar