Wimmer-Zagier, Silke Max Planck Institute for Mathematics, Max Planck Society;
Zagier, Don Max Planck Institute for Mathematics, Max Planck Society;
Wimmer-Zagier, S., & Zagier, D. (2013). Some questions and observations around the mathematics of Seki Takakazu. In Seki, founder of modern mathematics in Japan (pp. 275-297). Tokyo [et al.]: Springer.