TY  - BOOK
AU  - Hydon Peter E
TI  - Symmetry methods for differential equations: a beginner's guide
SN  - 0-521-49703-5
U1  - 530.15535 
PY  - 2000///
CY  - Cambridge
PB  - CUP
KW  - Differential equations-numerical solutions
KW  - Mathematical physics
KW  - Symmetry
ER  -