(en) Hideyuki Majima, « Seki Takakazu, His Life and Bibliography », dans Seki, Founder of Modern Mathematics in Japan, Springer (lire en ligne), p. 3-20
(en) Tomoko L. Kitagawa, « The Origin of the Bernoulli Numbers: Mathematics in Basel and Edo in the Early Eighteenth Century », The Mathematical Intelligencer, (lire en ligne)
