TY - BOOK AU - Rouche,N. AU - Habets,P. AU - LaLoy,M. TI - Stability theory by Liapunov's direct method SN - 0387902589 : U1 - 517.38 PY - 1977/// CY - New York PB - Springer-Verlag KW - Differential equations KW - Stability KW - Lyapunov functions N1 - Includes bibliographical references and index ER -