TY  - BOOK
AU  - Nemytskii, Viktor Vladimirovich,
AU  - Stepanov, Viacheslav Vasil'evich
TI  - Qualitative theory of differential equations
T2  - Princeton mathematical series
AV  - QA371 N43
PY  - 1960///
CY  - Princeton, n. j
PB  - Princeton University Press
KW  - Dinámica
KW  - Ecuaciones diferenciales
ER  -