Hyper Geometric Functions, My Love: Modular Interpretations of Configuration Spaces (Aspects of Mathematics) by Masaaki Yoshida
Discriminants, Resultants, and Multidimensional Determinants Israel M. Gelfand, Mikhail Kapranov, Andrei Zelevinsky
I heard a talk by Rivoal a decade back when he had just had his breakthrough concerning irrationality of zeta values. He quoted some very classical but not well-known results and got asked where he learned them. He recommended this book:
Confluent Hypergeometric Functions L. J. Slater
