ABSOLUTE AND DELAY-DEPENDENT STABILITY OF EQUATIONS WITH A DISTRIBUTED DELAY СтатьяBraverman Elena, Zhukovskiy SergeyDiscrete and Continuous Dynamical Systems- Series A. Том 32. 2012. С. 2041-2061
SYMMETRIES AND FIRST INTEGRALS OF A SECOND ORDER EVOLUTIONARY OPERATOR EQUATION СтатьяBudochkina S.A.Eurasian Mathematical Journal. Том 3. 2012. С. 18-28