17825 Mikhail Kapranov: Review of the book "Gröbner deformations of hypergeometric
differential equations" by Saito/Sturmfels/Takayama. Bull. AMS 38/4 (2001), 481-488.

Goro Kato/Daniele Struppa: Fundamentals of algebraic microlocal analysis.
Dekker 1999, 300p. $145. "This book is an excellent and concise introduction to
the algebraic theory of systems of differential equations with
analytic coefficients ..." (A. Parmeggiani)

A. Leung: Systems of nonlinear partial differential equations. Applications 
to biology and engineering. Kluwer 1989, 410p. 0-7923-0138-2. Dfl 190.

17897 Mutsumi Saito/Bernd Sturmfels/Nobuki Takayama: Gröbner
deformations of hypergeometric differential equations.
Springer 2000, 250p. $60.

O. Stormark: Lie's structural approach to PDE systems.
Cambridge UP 2000, 570p. Pds. 70.