Mathematics Unlimited: Engquist, Bjorn; Wilfried Schmid, Eds。978-3-030-80627-9。The History of Mathematics: A Source-Based Approach: Volume 1。MathematicsUnlimited -2001 and Beyond『21世紀数学の発展と展望』書き込みはありません。Mathematical Olympiads 1998-1999: Problems and Solutions。#数学 #Springer