TY  - BOOK
AU  - Sanchez, David A.
TI  - Ordinary differential equations and stability theory: an introduction 
SN  - 9780486638287
U1  - 515.352 22
PY  - 1979///
CY  - New York
PB  - Dover Publications Inc.
KW  - Differential Equations
N1  - school
ER  -