Iooss, Gerard. Elementary stability and bifurcation theory / Gerard Iooss, Daniel D. Joseph. - 2nd ed. - [S.l.] : Springer, 1989. - 356 p. ; 24 cm. - Undergraduate texts in mathematics. . - Undergraduate texts in mathematics. . ISBN: 0387970681 9780387970684 Dewey Class. No.: 515.35