1 - Contributions of the theory of nonlinear oscillations. Volume IILefschetz, Solomon (1884-1972) / Cartwright, Mary Lucy (1900-1998) / Coddington, Earl A / Levinson, Norman (1912-1975)Cote : [47 LEF 52-2]
2 - Theory of ordinary differential equationsCoddington, Earl A. (1920-....) / Levinson, Norman (1912-1975) Cote : [47 COD 55]