TY  - BOOK
AU  -  Hydon, Peter E.
AU  - Peter E.  Hydon
TI  - Symmetry methods for differential equations : a beginner's guide
SN  - 9780521497039
U1  - 530.15535 HYD 
PY  - 2000///
CY  - New York
PB  - Cambridge University Press
KW  - Differential equations--Numerical solutions
ER  -