@book{Gray:2000:LDG,
author = {Gray, Jeremy J.},
title = {Linear Differential Equations and Group Theory from {R}iemann
to {P}oincar\'e},
edition = {2nd},
publisher = {Birkh\"auser Boston Inc.},
address = {Boston, MA},
year = {2000},
pages = {xx+338},
isbn = {0-8176-3837-7},
mrclass = {34-03 (14-03 20-03 30E25 33-03 34Mxx)},
mrnumber = {MR1751835 (2000m:34002)},
zblno = {0949.01001}}