Liao, Shijun. Beyond perturbation : introduction to the homotopy analysis method / Shijun Liao. - [S.l.] : Chapman and Hall/CRC, 2004. - 336 p. ; 25 cm. - Modern mechanics and mathematics. . - Modern mechanics and mathematics. . ISBN: 158488407X 9781584884071 Dewey Class. No.: 514.24