Classification of linear differential equations with rational function coefficients
Complex Variables Theory Appl. 41 (2000), no. 2, 189--206.
BibTex references
@Article\{DK00,
author = "Dietrich, Volker and Knoben, Werner",
title = "Classification of linear differential equations with rational function coefficients",
journal = "Complex Variables Theory Appl.",
number = "2",
volume = "41",
pages = "189--206",
year = "2000",
}