TY  - BOOK
AU  - Olver,Peter
TI  - Applications of lie groups to differentislt equations graduate texts in mathematics
SN  - 0-387-95000-1
AV  - MATH QA372.O55 
PY  - 1993///
CY  - New York
PB  - Springer
KW  - Differential equations
N1  - Includes bibliographical references and index
ER  -