References |
Russian source; Russian source; Hatvani, L., (1990) Alkalm. Mat. Lap., 15 (1-2), pp. 1-90; Russian source; Russian source; Russian source; Vorotnikov, V.I., (1998) Partial Stability and Control, 442p. , Boston: Birkhauser; Lakshmikantham, V., Leela, S., Martynyuk, A.A., (1989) Stability Analysis of Nonlinear Systems, 315p. , N.Y.: Marcel Dekker; Russian source; Russian source; Russian source; Russian source; Corduneanu, C., (1971) Symp Math., 6, pp. 141-154. , Meccanica nonlineare e stabilita. 23-26 feb. 1970. L.; N.Y.: Acad. Press; Russian source; Russian source |