23897 Yuri Berest/Alex Kasman: D-modules and Darboux transformations.
Letters Math. Phys. 43 (1998), 279-294.

21826 S. Coutinho: A primer of algebraic D-modules.
Cambridge UP 2003, 200p. Eur 34.

21820 M. Hartillo/J. Ucha: A computational introduction to the
Weyl algebra and D-modules. Internet 2003, 15p.

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