Ordinary differential equations :introduction and qualitative theory /
Jane Cronin.
- 3rd ed.
- Boca Raton : Chapman & Hall/CRC, c2008.
- xix, 381 p. :ill. ; Pbk
- Monographs and textbooks in pure and applied mathematics .
Rev. of ed.: Differential equations. 2nd ed., rev. and expanded. c1994.