TY  - BOOK
AU  - Brauer,Fred
TI  - The qualitative theory of ordinary differential equatione; an introduction
T2  - University mathematics series
U1  - 515.35 
PY  - 1969///
CY  - New York, N.Y.
PB  - W. A. Benjamin
KW  - ECUACIONES DIFERENCIALES
N1  - Bibliografía: p. 302-303
ER  -