TY - BOOK AU - Verhulst,Ferdinand TI - Methods and applications of singular perturbations : : boundary layers and multiple timescale dynamics / SN - 9780387229669 : U1 - 515.35 21 PY - 2005/// CY - NewYork : PB - Springer , KW - DIFFERENTIAL EQUATIONS KW - PURTURBATION N1 - Includes bibliographic references and index ER -