TY  - BOOK
AU  - Stephani, Hans
AU  - Maccallum, Malcolm
TI  - DIFFERENTIAL EQUATIONS
SN  - 0521366895
U1  - 515.35 
PY  - 1989///
CY  - Cambridge
PB  - Cambridge Univ. Pr.
KW  - Differential Equations -- Numerical Sulutions
KW  - Symmetry
ER  -