TY  - DATA
AU  - Chang, Chih-fen.
TI  - Qualitative theory of differential equations 
T2  - Translations of Mathematical Monographs, 
SN  - 9781470445126 (online)
PY  - 1992///
CY  - Providence, R.I.
PB  - American Mathematical Society
KW  - Differential equations
N1  - Translation of: Wei fen fang cheng ting hsing li lun; Includes bibliographical references
UR  - https://doi.org/10.1090/mmono/101
ER  -