TY - BOOK AU - Kupershmidt, B. A. TI - Discrete Lax equations and differential-difference calculus T3 - Astérisque PY - 1985 DA - 1985/// IS - 123 PB - Société mathématique de France UR - http://archive.numdam.org/item/AST_1985__123__1_0/ UR - https://zbmath.org/?q=an%3A0565.58024 UR - https://www.ams.org/mathscinet-getitem?mr=785802 LA - en ID - AST_1985__123__1_0 ER -